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Finding the Fourth Proportional to 863,881.92, 1,192,148.90 and 476,700.90

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Solution

The fourth proportional to 863,881.92, 1,192,148.90 and 476,700.90 is: 657,842.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,881.92 : 1,192,148.90 = 476,700.90 : x
  2. Step 2: Convert to fraction form
    863,881.92/1,192,148.90 = 476,700.90/x
  3. Step 3: Cross multiply
    863,881.92x = 1,192,148.90 × 476,700.90
  4. Step 4: Simplify right side
    863,881.92x = 568,298,453,564.01
  5. Step 5: Solve for x
    x = 568,298,453,564.01/863,881.92
  6. Step 6: Final answer
    x = 657,842.74

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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.