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Finding the Fourth Proportional to 291,632.80, 437,449.17 and 70,016.80

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Solution

The fourth proportional to 291,632.80, 437,449.17 and 70,016.80 is: 105,025.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,632.80 : 437,449.17 = 70,016.80 : x
  2. Step 2: Convert to fraction form
    291,632.80/437,449.17 = 70,016.80/x
  3. Step 3: Cross multiply
    291,632.80x = 437,449.17 × 70,016.80
  4. Step 4: Simplify right side
    291,632.80x = 30,628,791,046.06
  5. Step 5: Solve for x
    x = 30,628,791,046.06/291,632.80
  6. Step 6: Final answer
    x = 105,025.19

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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.