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Finding the Fourth Proportional to 407,732.40, 610,432.20 and 250,268.40

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Solution

The fourth proportional to 407,732.40, 610,432.20 and 250,268.40 is: 374,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,732.40 : 610,432.20 = 250,268.40 : x
  2. Step 2: Convert to fraction form
    407,732.40/610,432.20 = 250,268.40/x
  3. Step 3: Cross multiply
    407,732.40x = 610,432.20 × 250,268.40
  4. Step 4: Simplify right side
    407,732.40x = 152,771,890,002.48
  5. Step 5: Solve for x
    x = 152,771,890,002.48/407,732.40
  6. Step 6: Final answer
    x = 374,686.66

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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.