Home / 861,457.04-1,292,185.47-230,354.45

Finding the Fourth Proportional to 861,457.04, 1,292,185.47 and 230,354.45

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Solution

The fourth proportional to 861,457.04, 1,292,185.47 and 230,354.45 is: 345,531.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,457.04 : 1,292,185.47 = 230,354.45 : x
  2. Step 2: Convert to fraction form
    861,457.04/1,292,185.47 = 230,354.45/x
  3. Step 3: Cross multiply
    861,457.04x = 1,292,185.47 × 230,354.45
  4. Step 4: Simplify right side
    861,457.04x = 297,660,672,488.44
  5. Step 5: Solve for x
    x = 297,660,672,488.44/861,457.04
  6. Step 6: Final answer
    x = 345,531.65

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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.