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Finding the Fourth Proportional to 425,622.87, 587,363.47 and 234,643.10

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Solution

The fourth proportional to 425,622.87, 587,363.47 and 234,643.10 is: 323,809.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,622.87 : 587,363.47 = 234,643.10 : x
  2. Step 2: Convert to fraction form
    425,622.87/587,363.47 = 234,643.10/x
  3. Step 3: Cross multiply
    425,622.87x = 587,363.47 × 234,643.10
  4. Step 4: Simplify right side
    425,622.87x = 137,820,781,904.13
  5. Step 5: Solve for x
    x = 137,820,781,904.13/425,622.87
  6. Step 6: Final answer
    x = 323,809.62

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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.