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Finding the Fourth Proportional to 610,213.60, 915,061.20 and 294,767.20

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Solution

The fourth proportional to 610,213.60, 915,061.20 and 294,767.20 is: 442,025.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,213.60 : 915,061.20 = 294,767.20 : x
  2. Step 2: Convert to fraction form
    610,213.60/915,061.20 = 294,767.20/x
  3. Step 3: Cross multiply
    610,213.60x = 915,061.20 × 294,767.20
  4. Step 4: Simplify right side
    610,213.60x = 269,730,027,752.64
  5. Step 5: Solve for x
    x = 269,730,027,752.64/610,213.60
  6. Step 6: Final answer
    x = 442,025.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.