Home / 818,795.52-1,130,181.12-517,190.40

Finding the Fourth Proportional to 818,795.52, 1,130,181.12 and 517,190.40

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Solution

The fourth proportional to 818,795.52, 1,130,181.12 and 517,190.40 is: 713,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,795.52 : 1,130,181.12 = 517,190.40 : x
  2. Step 2: Convert to fraction form
    818,795.52/1,130,181.12 = 517,190.40/x
  3. Step 3: Cross multiply
    818,795.52x = 1,130,181.12 × 517,190.40
  4. Step 4: Simplify right side
    818,795.52x = 584,518,825,525.25
  5. Step 5: Solve for x
    x = 584,518,825,525.25/818,795.52
  6. Step 6: Final answer
    x = 713,876.43

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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.