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Finding the Fourth Proportional to 577,862.70, 866,794.05 and 542,870.70

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Solution

The fourth proportional to 577,862.70, 866,794.05 and 542,870.70 is: 814,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,862.70 : 866,794.05 = 542,870.70 : x
  2. Step 2: Convert to fraction form
    577,862.70/866,794.05 = 542,870.70/x
  3. Step 3: Cross multiply
    577,862.70x = 866,794.05 × 542,870.70
  4. Step 4: Simplify right side
    577,862.70x = 470,557,092,679.34
  5. Step 5: Solve for x
    x = 470,557,092,679.34/577,862.70
  6. Step 6: Final answer
    x = 814,306.05

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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.