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Finding the Fourth Proportional to 518,608.32, 715,812.64 and 337,770.88

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Solution

The fourth proportional to 518,608.32, 715,812.64 and 337,770.88 is: 466,210.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,608.32 : 715,812.64 = 337,770.88 : x
  2. Step 2: Convert to fraction form
    518,608.32/715,812.64 = 337,770.88/x
  3. Step 3: Cross multiply
    518,608.32x = 715,812.64 × 337,770.88
  4. Step 4: Simplify right side
    518,608.32x = 241,780,665,327.92
  5. Step 5: Solve for x
    x = 241,780,665,327.92/518,608.32
  6. Step 6: Final answer
    x = 466,210.54

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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.