Home / 785,358.72-1,177,650.12-461,228.11

Finding the Fourth Proportional to 785,358.72, 1,177,650.12 and 461,228.11

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Solution

The fourth proportional to 785,358.72, 1,177,650.12 and 461,228.11 is: 691,614.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,358.72 : 1,177,650.12 = 461,228.11 : x
  2. Step 2: Convert to fraction form
    785,358.72/1,177,650.12 = 461,228.11/x
  3. Step 3: Cross multiply
    785,358.72x = 1,177,650.12 × 461,228.11
  4. Step 4: Simplify right side
    785,358.72x = 543,165,337,874.35
  5. Step 5: Solve for x
    x = 543,165,337,874.35/785,358.72
  6. Step 6: Final answer
    x = 691,614.32

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.