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Finding the Fourth Proportional to 718,863.93, 991,853.91 and 473,821.52

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Solution

The fourth proportional to 718,863.93, 991,853.91 and 473,821.52 is: 653,756.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,863.93 : 991,853.91 = 473,821.52 : x
  2. Step 2: Convert to fraction form
    718,863.93/991,853.91 = 473,821.52/x
  3. Step 3: Cross multiply
    718,863.93x = 991,853.91 × 473,821.52
  4. Step 4: Simplify right side
    718,863.93x = 469,961,722,294.87
  5. Step 5: Solve for x
    x = 469,961,722,294.87/718,863.93
  6. Step 6: Final answer
    x = 653,756.16

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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.