Home / 903,179.28-1,246,377.12-521,197.86

Finding the Fourth Proportional to 903,179.28, 1,246,377.12 and 521,197.86

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Solution

The fourth proportional to 903,179.28, 1,246,377.12 and 521,197.86 is: 719,247.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,179.28 : 1,246,377.12 = 521,197.86 : x
  2. Step 2: Convert to fraction form
    903,179.28/1,246,377.12 = 521,197.86/x
  3. Step 3: Cross multiply
    903,179.28x = 1,246,377.12 × 521,197.86
  4. Step 4: Simplify right side
    903,179.28x = 649,609,087,696.96
  5. Step 5: Solve for x
    x = 649,609,087,696.96/903,179.28
  6. Step 6: Final answer
    x = 719,247.11

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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.