Home / 827,404.90-1,241,107.35-266,439.40

Finding the Fourth Proportional to 827,404.90, 1,241,107.35 and 266,439.40

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Solution

The fourth proportional to 827,404.90, 1,241,107.35 and 266,439.40 is: 399,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,404.90 : 1,241,107.35 = 266,439.40 : x
  2. Step 2: Convert to fraction form
    827,404.90/1,241,107.35 = 266,439.40/x
  3. Step 3: Cross multiply
    827,404.90x = 1,241,107.35 × 266,439.40
  4. Step 4: Simplify right side
    827,404.90x = 330,679,897,669.59
  5. Step 5: Solve for x
    x = 330,679,897,669.59/827,404.90
  6. Step 6: Final answer
    x = 399,659.10

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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.