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Finding the Fourth Proportional to 308,446.72, 425,479.03 and 181,097.71

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Solution

The fourth proportional to 308,446.72, 425,479.03 and 181,097.71 is: 249,810.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,446.72 : 425,479.03 = 181,097.71 : x
  2. Step 2: Convert to fraction form
    308,446.72/425,479.03 = 181,097.71/x
  3. Step 3: Cross multiply
    308,446.72x = 425,479.03 × 181,097.71
  4. Step 4: Simplify right side
    308,446.72x = 77,053,277,986.02
  5. Step 5: Solve for x
    x = 77,053,277,986.02/308,446.72
  6. Step 6: Final answer
    x = 249,810.66

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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.