Home / 816,233.20-1,224,349.80-442,985.20

Finding the Fourth Proportional to 816,233.20, 1,224,349.80 and 442,985.20

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Solution

The fourth proportional to 816,233.20, 1,224,349.80 and 442,985.20 is: 664,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,233.20 : 1,224,349.80 = 442,985.20 : x
  2. Step 2: Convert to fraction form
    816,233.20/1,224,349.80 = 442,985.20/x
  3. Step 3: Cross multiply
    816,233.20x = 1,224,349.80 × 442,985.20
  4. Step 4: Simplify right side
    816,233.20x = 542,368,841,022.96
  5. Step 5: Solve for x
    x = 542,368,841,022.96/816,233.20
  6. Step 6: Final answer
    x = 664,477.80

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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.