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Finding the Fourth Proportional to 562,254.62, 775,898.06 and 307,607.90

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Solution

The fourth proportional to 562,254.62, 775,898.06 and 307,607.90 is: 424,491.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,254.62 : 775,898.06 = 307,607.90 : x
  2. Step 2: Convert to fraction form
    562,254.62/775,898.06 = 307,607.90/x
  3. Step 3: Cross multiply
    562,254.62x = 775,898.06 × 307,607.90
  4. Step 4: Simplify right side
    562,254.62x = 238,672,372,850.67
  5. Step 5: Solve for x
    x = 238,672,372,850.67/562,254.62
  6. Step 6: Final answer
    x = 424,491.62

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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.