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Finding the Fourth Proportional to 518,191.64, 714,777.39 and 356,766.44

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Solution

The fourth proportional to 518,191.64, 714,777.39 and 356,766.44 is: 492,112.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,191.64 : 714,777.39 = 356,766.44 : x
  2. Step 2: Convert to fraction form
    518,191.64/714,777.39 = 356,766.44/x
  3. Step 3: Cross multiply
    518,191.64x = 714,777.39 × 356,766.44
  4. Step 4: Simplify right side
    518,191.64x = 255,008,581,248.91
  5. Step 5: Solve for x
    x = 255,008,581,248.91/518,191.64
  6. Step 6: Final answer
    x = 492,112.50

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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.