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Finding the Fourth Proportional to 358,712.28, 495,026.24 and 197,567.91

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Solution

The fourth proportional to 358,712.28, 495,026.24 and 197,567.91 is: 272,645.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,712.28 : 495,026.24 = 197,567.91 : x
  2. Step 2: Convert to fraction form
    358,712.28/495,026.24 = 197,567.91/x
  3. Step 3: Cross multiply
    358,712.28x = 495,026.24 × 197,567.91
  4. Step 4: Simplify right side
    358,712.28x = 97,801,298,644.12
  5. Step 5: Solve for x
    x = 97,801,298,644.12/358,712.28
  6. Step 6: Final answer
    x = 272,645.53

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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.