Home / 714,224.72-985,627.20-391,940.19

Finding the Fourth Proportional to 714,224.72, 985,627.20 and 391,940.19

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Solution

The fourth proportional to 714,224.72, 985,627.20 and 391,940.19 is: 540,875.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,224.72 : 985,627.20 = 391,940.19 : x
  2. Step 2: Convert to fraction form
    714,224.72/985,627.20 = 391,940.19/x
  3. Step 3: Cross multiply
    714,224.72x = 985,627.20 × 391,940.19
  4. Step 4: Simplify right side
    714,224.72x = 386,306,912,037.17
  5. Step 5: Solve for x
    x = 386,306,912,037.17/714,224.72
  6. Step 6: Final answer
    x = 540,875.87

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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.