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Finding the Fourth Proportional to 750,744.72, 1,036,027.96 and 411,225.20

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Solution

The fourth proportional to 750,744.72, 1,036,027.96 and 411,225.20 is: 567,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,744.72 : 1,036,027.96 = 411,225.20 : x
  2. Step 2: Convert to fraction form
    750,744.72/1,036,027.96 = 411,225.20/x
  3. Step 3: Cross multiply
    750,744.72x = 1,036,027.96 × 411,225.20
  4. Step 4: Simplify right side
    750,744.72x = 426,040,805,056.59
  5. Step 5: Solve for x
    x = 426,040,805,056.59/750,744.72
  6. Step 6: Final answer
    x = 567,490.91

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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.