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Finding the Fourth Proportional to 577,764.67, 866,472.04 and 156,985.87

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Solution

The fourth proportional to 577,764.67, 866,472.04 and 156,985.87 is: 235,431.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,764.67 : 866,472.04 = 156,985.87 : x
  2. Step 2: Convert to fraction form
    577,764.67/866,472.04 = 156,985.87/x
  3. Step 3: Cross multiply
    577,764.67x = 866,472.04 × 156,985.87
  4. Step 4: Simplify right side
    577,764.67x = 136,023,867,030.08
  5. Step 5: Solve for x
    x = 136,023,867,030.08/577,764.67
  6. Step 6: Final answer
    x = 235,431.26

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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.