Home / 861,153.90-1,291,212.45-441,249.90

Finding the Fourth Proportional to 861,153.90, 1,291,212.45 and 441,249.90

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Solution

The fourth proportional to 861,153.90, 1,291,212.45 and 441,249.90 is: 661,609.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,153.90 : 1,291,212.45 = 441,249.90 : x
  2. Step 2: Convert to fraction form
    861,153.90/1,291,212.45 = 441,249.90/x
  3. Step 3: Cross multiply
    861,153.90x = 1,291,212.45 × 441,249.90
  4. Step 4: Simplify right side
    861,153.90x = 569,747,364,441.26
  5. Step 5: Solve for x
    x = 569,747,364,441.26/861,153.90
  6. Step 6: Final answer
    x = 661,609.23

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Double scale
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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.