Home / 646,936.10-970,404.15-367,000.10

Finding the Fourth Proportional to 646,936.10, 970,404.15 and 367,000.10

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Solution

The fourth proportional to 646,936.10, 970,404.15 and 367,000.10 is: 550,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,936.10 : 970,404.15 = 367,000.10 : x
  2. Step 2: Convert to fraction form
    646,936.10/970,404.15 = 367,000.10/x
  3. Step 3: Cross multiply
    646,936.10x = 970,404.15 × 367,000.10
  4. Step 4: Simplify right side
    646,936.10x = 356,138,420,090.42
  5. Step 5: Solve for x
    x = 356,138,420,090.42/646,936.10
  6. Step 6: Final answer
    x = 550,500.15

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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.