Home / 641,737.71-885,320.05-386,947.35

Finding the Fourth Proportional to 641,737.71, 885,320.05 and 386,947.35

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Solution

The fourth proportional to 641,737.71, 885,320.05 and 386,947.35 is: 533,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,737.71 : 885,320.05 = 386,947.35 : x
  2. Step 2: Convert to fraction form
    641,737.71/885,320.05 = 386,947.35/x
  3. Step 3: Cross multiply
    641,737.71x = 885,320.05 × 386,947.35
  4. Step 4: Simplify right side
    641,737.71x = 342,572,247,249.37
  5. Step 5: Solve for x
    x = 342,572,247,249.37/641,737.71
  6. Step 6: Final answer
    x = 533,819.72

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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.