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Finding the Fourth Proportional to 866,153.96, 1,299,610.74 and 411,073.88

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Solution

The fourth proportional to 866,153.96, 1,299,610.74 and 411,073.88 is: 616,791.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,153.96 : 1,299,610.74 = 411,073.88 : x
  2. Step 2: Convert to fraction form
    866,153.96/1,299,610.74 = 411,073.88/x
  3. Step 3: Cross multiply
    866,153.96x = 1,299,610.74 × 411,073.88
  4. Step 4: Simplify right side
    866,153.96x = 534,236,029,381.47
  5. Step 5: Solve for x
    x = 534,236,029,381.47/866,153.96
  6. Step 6: Final answer
    x = 616,791.07

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1.5x scale

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.