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Finding the Fourth Proportional to 357,686.13, 493,606.71 and 196,551.56

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Solution

The fourth proportional to 357,686.13, 493,606.71 and 196,551.56 is: 271,241.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,686.13 : 493,606.71 = 196,551.56 : x
  2. Step 2: Convert to fraction form
    357,686.13/493,606.71 = 196,551.56/x
  3. Step 3: Cross multiply
    357,686.13x = 493,606.71 × 196,551.56
  4. Step 4: Simplify right side
    357,686.13x = 97,019,170,110.98
  5. Step 5: Solve for x
    x = 97,019,170,110.98/357,686.13
  6. Step 6: Final answer
    x = 271,241.08

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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.