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Finding the Fourth Proportional to 610,138.28, 915,149.10 and 373,359.08

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Solution

The fourth proportional to 610,138.28, 915,149.10 and 373,359.08 is: 560,002.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,138.28 : 915,149.10 = 373,359.08 : x
  2. Step 2: Convert to fraction form
    610,138.28/915,149.10 = 373,359.08/x
  3. Step 3: Cross multiply
    610,138.28x = 915,149.10 × 373,359.08
  4. Step 4: Simplify right side
    610,138.28x = 341,679,226,038.83
  5. Step 5: Solve for x
    x = 341,679,226,038.83/610,138.28
  6. Step 6: Final answer
    x = 560,002.93

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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.