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Finding the Fourth Proportional to 461,432.40, 690,612.60 and 334,712.40

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Solution

The fourth proportional to 461,432.40, 690,612.60 and 334,712.40 is: 500,954.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,432.40 : 690,612.60 = 334,712.40 : x
  2. Step 2: Convert to fraction form
    461,432.40/690,612.60 = 334,712.40/x
  3. Step 3: Cross multiply
    461,432.40x = 690,612.60 × 334,712.40
  4. Step 4: Simplify right side
    461,432.40x = 231,156,600,816.24
  5. Step 5: Solve for x
    x = 231,156,600,816.24/461,432.40
  6. Step 6: Final answer
    x = 500,954.42

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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.