Home / 512,985.28-769,516.60-153,127.71

Finding the Fourth Proportional to 512,985.28, 769,516.60 and 153,127.71

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Solution

The fourth proportional to 512,985.28, 769,516.60 and 153,127.71 is: 229,703.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,985.28 : 769,516.60 = 153,127.71 : x
  2. Step 2: Convert to fraction form
    512,985.28/769,516.60 = 153,127.71/x
  3. Step 3: Cross multiply
    512,985.28x = 769,516.60 × 153,127.71
  4. Step 4: Simplify right side
    512,985.28x = 117,834,314,764.99
  5. Step 5: Solve for x
    x = 117,834,314,764.99/512,985.28
  6. Step 6: Final answer
    x = 229,703.11

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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.