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Finding the Fourth Proportional to 573,187.70, 859,781.55 and 514,138.70

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Solution

The fourth proportional to 573,187.70, 859,781.55 and 514,138.70 is: 771,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,187.70 : 859,781.55 = 514,138.70 : x
  2. Step 2: Convert to fraction form
    573,187.70/859,781.55 = 514,138.70/x
  3. Step 3: Cross multiply
    573,187.70x = 859,781.55 × 514,138.70
  4. Step 4: Simplify right side
    573,187.70x = 442,046,968,400.99
  5. Step 5: Solve for x
    x = 442,046,968,400.99/573,187.70
  6. Step 6: Final answer
    x = 771,208.05

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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.