Home / 813,469.62-1,122,586.14-445,946.11

Finding the Fourth Proportional to 813,469.62, 1,122,586.14 and 445,946.11

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Solution

The fourth proportional to 813,469.62, 1,122,586.14 and 445,946.11 is: 615,404.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,469.62 : 1,122,586.14 = 445,946.11 : x
  2. Step 2: Convert to fraction form
    813,469.62/1,122,586.14 = 445,946.11/x
  3. Step 3: Cross multiply
    813,469.62x = 1,122,586.14 × 445,946.11
  4. Step 4: Simplify right side
    813,469.62x = 500,612,921,138.75
  5. Step 5: Solve for x
    x = 500,612,921,138.75/813,469.62
  6. Step 6: Final answer
    x = 615,404.57

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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.