Home / 786,154.10-1,179,231.15-534,211.70

Finding the Fourth Proportional to 786,154.10, 1,179,231.15 and 534,211.70

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Solution

The fourth proportional to 786,154.10, 1,179,231.15 and 534,211.70 is: 801,317.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,154.10 : 1,179,231.15 = 534,211.70 : x
  2. Step 2: Convert to fraction form
    786,154.10/1,179,231.15 = 534,211.70/x
  3. Step 3: Cross multiply
    786,154.10x = 1,179,231.15 × 534,211.70
  4. Step 4: Simplify right side
    786,154.10x = 629,959,077,334.46
  5. Step 5: Solve for x
    x = 629,959,077,334.46/786,154.10
  6. Step 6: Final answer
    x = 801,317.55

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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.