Home / 834,200.70-1,251,301.05-519,272.70

Finding the Fourth Proportional to 834,200.70, 1,251,301.05 and 519,272.70

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Solution

The fourth proportional to 834,200.70, 1,251,301.05 and 519,272.70 is: 778,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,200.70 : 1,251,301.05 = 519,272.70 : x
  2. Step 2: Convert to fraction form
    834,200.70/1,251,301.05 = 519,272.70/x
  3. Step 3: Cross multiply
    834,200.70x = 1,251,301.05 × 519,272.70
  4. Step 4: Simplify right side
    834,200.70x = 649,766,474,746.34
  5. Step 5: Solve for x
    x = 649,766,474,746.34/834,200.70
  6. Step 6: Final answer
    x = 778,909.05

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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.