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Finding the Fourth Proportional to 425,341.87, 586,997.91 and 234,355.21

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Solution

The fourth proportional to 425,341.87, 586,997.91 and 234,355.21 is: 323,424.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,341.87 : 586,997.91 = 234,355.21 : x
  2. Step 2: Convert to fraction form
    425,341.87/586,997.91 = 234,355.21/x
  3. Step 3: Cross multiply
    425,341.87x = 586,997.91 × 234,355.21
  4. Step 4: Simplify right side
    425,341.87x = 137,566,018,467.61
  5. Step 5: Solve for x
    x = 137,566,018,467.61/425,341.87
  6. Step 6: Final answer
    x = 323,424.59

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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.