Home / 445,195.20-614,365.92-243,990.72

Finding the Fourth Proportional to 445,195.20, 614,365.92 and 243,990.72

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Solution

The fourth proportional to 445,195.20, 614,365.92 and 243,990.72 is: 336,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,195.20 : 614,365.92 = 243,990.72 : x
  2. Step 2: Convert to fraction form
    445,195.20/614,365.92 = 243,990.72/x
  3. Step 3: Cross multiply
    445,195.20x = 614,365.92 × 243,990.72
  4. Step 4: Simplify right side
    445,195.20x = 149,899,583,164.26
  5. Step 5: Solve for x
    x = 149,899,583,164.26/445,195.20
  6. Step 6: Final answer
    x = 336,705.30

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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.