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Finding the Fourth Proportional to 493,167.40, 740,042.70 and 359,711.80

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Solution

The fourth proportional to 493,167.40, 740,042.70 and 359,711.80 is: 539,780.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,167.40 : 740,042.70 = 359,711.80 : x
  2. Step 2: Convert to fraction form
    493,167.40/740,042.70 = 359,711.80/x
  3. Step 3: Cross multiply
    493,167.40x = 740,042.70 × 359,711.80
  4. Step 4: Simplify right side
    493,167.40x = 266,202,091,693.86
  5. Step 5: Solve for x
    x = 266,202,091,693.86/493,167.40
  6. Step 6: Final answer
    x = 539,780.39

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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.