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Finding the Fourth Proportional to 750,551.16, 1,035,752.82 and 406,381.16

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Solution

The fourth proportional to 750,551.16, 1,035,752.82 and 406,381.16 is: 560,801.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,551.16 : 1,035,752.82 = 406,381.16 : x
  2. Step 2: Convert to fraction form
    750,551.16/1,035,752.82 = 406,381.16/x
  3. Step 3: Cross multiply
    750,551.16x = 1,035,752.82 × 406,381.16
  4. Step 4: Simplify right side
    750,551.16x = 420,910,432,464.87
  5. Step 5: Solve for x
    x = 420,910,432,464.87/750,551.16
  6. Step 6: Final answer
    x = 560,801.79

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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.