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Finding the Fourth Proportional to 604,531.12, 906,603.48 and 199,633.18

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Solution

The fourth proportional to 604,531.12, 906,603.48 and 199,633.18 is: 299,385.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,531.12 : 906,603.48 = 199,633.18 : x
  2. Step 2: Convert to fraction form
    604,531.12/906,603.48 = 199,633.18/x
  3. Step 3: Cross multiply
    604,531.12x = 906,603.48 × 199,633.18
  4. Step 4: Simplify right side
    604,531.12x = 180,988,135,711.47
  5. Step 5: Solve for x
    x = 180,988,135,711.47/604,531.12
  6. Step 6: Final answer
    x = 299,385.97

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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.