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Finding the Fourth Proportional to 357,681.74, 493,612.92 and 196,542.56

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Solution

The fourth proportional to 357,681.74, 493,612.92 and 196,542.56 is: 271,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,681.74 : 493,612.92 = 196,542.56 : x
  2. Step 2: Convert to fraction form
    357,681.74/493,612.92 = 196,542.56/x
  3. Step 3: Cross multiply
    357,681.74x = 493,612.92 × 196,542.56
  4. Step 4: Simplify right side
    357,681.74x = 97,015,948,179.91
  5. Step 5: Solve for x
    x = 97,015,948,179.91/357,681.74
  6. Step 6: Final answer
    x = 271,235.40

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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.