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Finding the Fourth Proportional to 607,781.40, 910,359.90 and 529,049.40

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Solution

The fourth proportional to 607,781.40, 910,359.90 and 529,049.40 is: 792,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,781.40 : 910,359.90 = 529,049.40 : x
  2. Step 2: Convert to fraction form
    607,781.40/910,359.90 = 529,049.40/x
  3. Step 3: Cross multiply
    607,781.40x = 910,359.90 × 529,049.40
  4. Step 4: Simplify right side
    607,781.40x = 481,625,358,879.06
  5. Step 5: Solve for x
    x = 481,625,358,879.06/607,781.40
  6. Step 6: Final answer
    x = 792,431.88

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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.