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Finding the Fourth Proportional to 353,217.71, 487,425.59 and 200,266.19

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Solution

The fourth proportional to 353,217.71, 487,425.59 and 200,266.19 is: 276,358.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,217.71 : 487,425.59 = 200,266.19 : x
  2. Step 2: Convert to fraction form
    353,217.71/487,425.59 = 200,266.19/x
  3. Step 3: Cross multiply
    353,217.71x = 487,425.59 × 200,266.19
  4. Step 4: Simplify right side
    353,217.71x = 97,614,865,817.80
  5. Step 5: Solve for x
    x = 97,614,865,817.80/353,217.71
  6. Step 6: Final answer
    x = 276,358.92

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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.