Home / 781,057.50-1,077,425.59-454,333.71

Finding the Fourth Proportional to 781,057.50, 1,077,425.59 and 454,333.71

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Solution

The fourth proportional to 781,057.50, 1,077,425.59 and 454,333.71 is: 626,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,057.50 : 1,077,425.59 = 454,333.71 : x
  2. Step 2: Convert to fraction form
    781,057.50/1,077,425.59 = 454,333.71/x
  3. Step 3: Cross multiply
    781,057.50x = 1,077,425.59 × 454,333.71
  4. Step 4: Simplify right side
    781,057.50x = 489,510,765,553.64
  5. Step 5: Solve for x
    x = 489,510,765,553.64/781,057.50
  6. Step 6: Final answer
    x = 626,728.21

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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.