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Finding the Fourth Proportional to 892,136.76, 1,231,115.76 and 484,229.93

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Solution

The fourth proportional to 892,136.76, 1,231,115.76 and 484,229.93 is: 668,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,136.76 : 1,231,115.76 = 484,229.93 : x
  2. Step 2: Convert to fraction form
    892,136.76/1,231,115.76 = 484,229.93/x
  3. Step 3: Cross multiply
    892,136.76x = 1,231,115.76 × 484,229.93
  4. Step 4: Simplify right side
    892,136.76x = 596,143,092,131.12
  5. Step 5: Solve for x
    x = 596,143,092,131.12/892,136.76
  6. Step 6: Final answer
    x = 668,219.40

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Double scale
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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.