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Finding the Fourth Proportional to 417,772.69, 576,524.89 and 226,784.71

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Solution

The fourth proportional to 417,772.69, 576,524.89 and 226,784.71 is: 312,962.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,772.69 : 576,524.89 = 226,784.71 : x
  2. Step 2: Convert to fraction form
    417,772.69/576,524.89 = 226,784.71/x
  3. Step 3: Cross multiply
    417,772.69x = 576,524.89 × 226,784.71
  4. Step 4: Simplify right side
    417,772.69x = 130,747,030,990.57
  5. Step 5: Solve for x
    x = 130,747,030,990.57/417,772.69
  6. Step 6: Final answer
    x = 312,962.13

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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.