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Finding the Fourth Proportional to 836,805.60, 1,154,703.60 and 497,227.68

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Solution

The fourth proportional to 836,805.60, 1,154,703.60 and 497,227.68 is: 686,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,805.60 : 1,154,703.60 = 497,227.68 : x
  2. Step 2: Convert to fraction form
    836,805.60/1,154,703.60 = 497,227.68/x
  3. Step 3: Cross multiply
    836,805.60x = 1,154,703.60 × 497,227.68
  4. Step 4: Simplify right side
    836,805.60x = 574,150,592,115.65
  5. Step 5: Solve for x
    x = 574,150,592,115.65/836,805.60
  6. Step 6: Final answer
    x = 686,121.83

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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.