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Finding the Fourth Proportional to 621,585.78, 932,286.28 and 172,259.79

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Solution

The fourth proportional to 621,585.78, 932,286.28 and 172,259.79 is: 258,364.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,585.78 : 932,286.28 = 172,259.79 : x
  2. Step 2: Convert to fraction form
    621,585.78/932,286.28 = 172,259.79/x
  3. Step 3: Cross multiply
    621,585.78x = 932,286.28 × 172,259.79
  4. Step 4: Simplify right side
    621,585.78x = 160,595,438,812.68
  5. Step 5: Solve for x
    x = 160,595,438,812.68/621,585.78
  6. Step 6: Final answer
    x = 258,364.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.