Home / 409,582.24-614,373.28-129,121.44

Finding the Fourth Proportional to 409,582.24, 614,373.28 and 129,121.44

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Solution

The fourth proportional to 409,582.24, 614,373.28 and 129,121.44 is: 193,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,582.24 : 614,373.28 = 129,121.44 : x
  2. Step 2: Convert to fraction form
    409,582.24/614,373.28 = 129,121.44/x
  3. Step 3: Cross multiply
    409,582.24x = 614,373.28 × 129,121.44
  4. Step 4: Simplify right side
    409,582.24x = 79,328,762,611.12
  5. Step 5: Solve for x
    x = 79,328,762,611.12/409,582.24
  6. Step 6: Final answer
    x = 193,682.13

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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.