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Finding the Fourth Proportional to 324,117.69, 447,307.20 and 178,951.47

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Solution

The fourth proportional to 324,117.69, 447,307.20 and 178,951.47 is: 246,966.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,117.69 : 447,307.20 = 178,951.47 : x
  2. Step 2: Convert to fraction form
    324,117.69/447,307.20 = 178,951.47/x
  3. Step 3: Cross multiply
    324,117.69x = 447,307.20 × 178,951.47
  4. Step 4: Simplify right side
    324,117.69x = 80,046,280,981.58
  5. Step 5: Solve for x
    x = 80,046,280,981.58/324,117.69
  6. Step 6: Final answer
    x = 246,966.71

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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.