Home / 612,345,612.30-918,518,418.45-586,836,444.30

Finding the Fourth Proportional to 612,345,612.30, 918,518,418.45 and 586,836,444.30

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Solution

The fourth proportional to 612,345,612.30, 918,518,418.45 and 586,836,444.30 is: 880,254,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,345,612.30 : 918,518,418.45 = 586,836,444.30 : x
  2. Step 2: Convert to fraction form
    612,345,612.30/918,518,418.45 = 586,836,444.30/x
  3. Step 3: Cross multiply
    612,345,612.30x = 918,518,418.45 × 586,836,444.30
  4. Step 4: Simplify right side
    612,345,612.30x = 539,020,082,707,257,472
  5. Step 5: Solve for x
    x = 539,020,082,707,257,472/612,345,612.30
  6. Step 6: Final answer
    x = 880,254,666.45

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Half scale
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Double scale
Find fourth proportional to 612,345,613.30, 918,518,419.95 and 586,836,445.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.