Home / 409,478.90-614,219.93-125,168.36

Finding the Fourth Proportional to 409,478.90, 614,219.93 and 125,168.36

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Solution

The fourth proportional to 409,478.90, 614,219.93 and 125,168.36 is: 187,753.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,478.90 : 614,219.93 = 125,168.36 : x
  2. Step 2: Convert to fraction form
    409,478.90/614,219.93 = 125,168.36/x
  3. Step 3: Cross multiply
    409,478.90x = 614,219.93 × 125,168.36
  4. Step 4: Simplify right side
    409,478.90x = 76,880,899,923.80
  5. Step 5: Solve for x
    x = 76,880,899,923.80/409,478.90
  6. Step 6: Final answer
    x = 187,753.02

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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.