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Finding the Fourth Proportional to 291,484.43, 437,185.12 and 91,799.62

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Solution

The fourth proportional to 291,484.43, 437,185.12 and 91,799.62 is: 137,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,484.43 : 437,185.12 = 91,799.62 : x
  2. Step 2: Convert to fraction form
    291,484.43/437,185.12 = 91,799.62/x
  3. Step 3: Cross multiply
    291,484.43x = 437,185.12 × 91,799.62
  4. Step 4: Simplify right side
    291,484.43x = 40,133,427,426.66
  5. Step 5: Solve for x
    x = 40,133,427,426.66/291,484.43
  6. Step 6: Final answer
    x = 137,686.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.