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Finding the Fourth Proportional to 577,898.19, 866,631.72 and 198,711.66

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Solution

The fourth proportional to 577,898.19, 866,631.72 and 198,711.66 is: 297,993.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,898.19 : 866,631.72 = 198,711.66 : x
  2. Step 2: Convert to fraction form
    577,898.19/866,631.72 = 198,711.66/x
  3. Step 3: Cross multiply
    577,898.19x = 866,631.72 × 198,711.66
  4. Step 4: Simplify right side
    577,898.19x = 172,209,827,689.86
  5. Step 5: Solve for x
    x = 172,209,827,689.86/577,898.19
  6. Step 6: Final answer
    x = 297,993.37

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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.