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Finding the Fourth Proportional to 358,716.48, 495,031.92 and 197,577.12

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Solution

The fourth proportional to 358,716.48, 495,031.92 and 197,577.12 is: 272,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,716.48 : 495,031.92 = 197,577.12 : x
  2. Step 2: Convert to fraction form
    358,716.48/495,031.92 = 197,577.12/x
  3. Step 3: Cross multiply
    358,716.48x = 495,031.92 × 197,577.12
  4. Step 4: Simplify right side
    358,716.48x = 97,806,981,061.67
  5. Step 5: Solve for x
    x = 97,806,981,061.67/358,716.48
  6. Step 6: Final answer
    x = 272,658.18

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1.5x scale

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.