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Finding the Fourth Proportional to 573,029.20, 859,572.45 and 218,070.80

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Solution

The fourth proportional to 573,029.20, 859,572.45 and 218,070.80 is: 327,117.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,029.20 : 859,572.45 = 218,070.80 : x
  2. Step 2: Convert to fraction form
    573,029.20/859,572.45 = 218,070.80/x
  3. Step 3: Cross multiply
    573,029.20x = 859,572.45 × 218,070.80
  4. Step 4: Simplify right side
    573,029.20x = 187,447,651,829.46
  5. Step 5: Solve for x
    x = 187,447,651,829.46/573,029.20
  6. Step 6: Final answer
    x = 327,117.10

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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.