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Finding the Fourth Proportional to 610,470.40, 915,073.80 and 273,672.40

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Solution

The fourth proportional to 610,470.40, 915,073.80 and 273,672.40 is: 410,225.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,470.40 : 915,073.80 = 273,672.40 : x
  2. Step 2: Convert to fraction form
    610,470.40/915,073.80 = 273,672.40/x
  3. Step 3: Cross multiply
    610,470.40x = 915,073.80 × 273,672.40
  4. Step 4: Simplify right side
    610,470.40x = 250,430,443,023.12
  5. Step 5: Solve for x
    x = 250,430,443,023.12/610,470.40
  6. Step 6: Final answer
    x = 410,225.37

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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.