Home / 926,520.62-1,278,620.10-518,612.31

Finding the Fourth Proportional to 926,520.62, 1,278,620.10 and 518,612.31

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Solution

The fourth proportional to 926,520.62, 1,278,620.10 and 518,612.31 is: 715,697.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,520.62 : 1,278,620.10 = 518,612.31 : x
  2. Step 2: Convert to fraction form
    926,520.62/1,278,620.10 = 518,612.31/x
  3. Step 3: Cross multiply
    926,520.62x = 1,278,620.10 × 518,612.31
  4. Step 4: Simplify right side
    926,520.62x = 663,108,123,673.43
  5. Step 5: Solve for x
    x = 663,108,123,673.43/926,520.62
  6. Step 6: Final answer
    x = 715,697.11

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.