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Finding the Fourth Proportional to 502,615.80, 753,923.70 and 331,373.70

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Solution

The fourth proportional to 502,615.80, 753,923.70 and 331,373.70 is: 497,060.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,615.80 : 753,923.70 = 331,373.70 : x
  2. Step 2: Convert to fraction form
    502,615.80/753,923.70 = 331,373.70/x
  3. Step 3: Cross multiply
    502,615.80x = 753,923.70 × 331,373.70
  4. Step 4: Simplify right side
    502,615.80x = 249,830,485,986.69
  5. Step 5: Solve for x
    x = 249,830,485,986.69/502,615.80
  6. Step 6: Final answer
    x = 497,060.55

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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.