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Finding the Fourth Proportional to 606,216.36, 836,432.28 and 391,310.40

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Solution

The fourth proportional to 606,216.36, 836,432.28 and 391,310.40 is: 539,913.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,216.36 : 836,432.28 = 391,310.40 : x
  2. Step 2: Convert to fraction form
    606,216.36/836,432.28 = 391,310.40/x
  3. Step 3: Cross multiply
    606,216.36x = 836,432.28 × 391,310.40
  4. Step 4: Simplify right side
    606,216.36x = 327,304,650,059.71
  5. Step 5: Solve for x
    x = 327,304,650,059.71/606,216.36
  6. Step 6: Final answer
    x = 539,913.92

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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.