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Finding the Fourth Proportional to 352,658.59, 486,678.49 and 207,474.59

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Solution

The fourth proportional to 352,658.59, 486,678.49 and 207,474.59 is: 286,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,658.59 : 486,678.49 = 207,474.59 : x
  2. Step 2: Convert to fraction form
    352,658.59/486,678.49 = 207,474.59/x
  3. Step 3: Cross multiply
    352,658.59x = 486,678.49 × 207,474.59
  4. Step 4: Simplify right side
    352,658.59x = 100,973,420,872.58
  5. Step 5: Solve for x
    x = 100,973,420,872.58/352,658.59
  6. Step 6: Final answer
    x = 286,320.61

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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.