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Finding the Fourth Proportional to 538,461.10, 807,691.65 and 528,093.10

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Solution

The fourth proportional to 538,461.10, 807,691.65 and 528,093.10 is: 792,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,461.10 : 807,691.65 = 528,093.10 : x
  2. Step 2: Convert to fraction form
    538,461.10/807,691.65 = 528,093.10/x
  3. Step 3: Cross multiply
    538,461.10x = 807,691.65 × 528,093.10
  4. Step 4: Simplify right side
    538,461.10x = 426,536,387,292.62
  5. Step 5: Solve for x
    x = 426,536,387,292.62/538,461.10
  6. Step 6: Final answer
    x = 792,139.65

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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.