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Finding the Fourth Proportional to 357,561.36, 493,437.80 and 196,419.68

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Solution

The fourth proportional to 357,561.36, 493,437.80 and 196,419.68 is: 271,060.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,561.36 : 493,437.80 = 196,419.68 : x
  2. Step 2: Convert to fraction form
    357,561.36/493,437.80 = 196,419.68/x
  3. Step 3: Cross multiply
    357,561.36x = 493,437.80 × 196,419.68
  4. Step 4: Simplify right side
    357,561.36x = 96,920,894,775.90
  5. Step 5: Solve for x
    x = 96,920,894,775.90/357,561.36
  6. Step 6: Final answer
    x = 271,060.87

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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.