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Finding the Fourth Proportional to 526,612.50, 726,743.79 and 297,156.33

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Solution

The fourth proportional to 526,612.50, 726,743.79 and 297,156.33 is: 410,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,612.50 : 726,743.79 = 297,156.33 : x
  2. Step 2: Convert to fraction form
    526,612.50/726,743.79 = 297,156.33/x
  3. Step 3: Cross multiply
    526,612.50x = 726,743.79 × 297,156.33
  4. Step 4: Simplify right side
    526,612.50x = 215,956,517,486.69
  5. Step 5: Solve for x
    x = 215,956,517,486.69/526,612.50
  6. Step 6: Final answer
    x = 410,086.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.