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Finding the Fourth Proportional to 713,793.44, 985,098.14 and 391,566.32

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Solution

The fourth proportional to 713,793.44, 985,098.14 and 391,566.32 is: 540,396.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,793.44 : 985,098.14 = 391,566.32 : x
  2. Step 2: Convert to fraction form
    713,793.44/985,098.14 = 391,566.32/x
  3. Step 3: Cross multiply
    713,793.44x = 985,098.14 × 391,566.32
  4. Step 4: Simplify right side
    713,793.44x = 385,731,246,635.32
  5. Step 5: Solve for x
    x = 385,731,246,635.32/713,793.44
  6. Step 6: Final answer
    x = 540,396.18

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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.