Home / 854,793.40-1,282,190.10-815,427.40

Finding the Fourth Proportional to 854,793.40, 1,282,190.10 and 815,427.40

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Solution

The fourth proportional to 854,793.40, 1,282,190.10 and 815,427.40 is: 1,223,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,793.40 : 1,282,190.10 = 815,427.40 : x
  2. Step 2: Convert to fraction form
    854,793.40/1,282,190.10 = 815,427.40/x
  3. Step 3: Cross multiply
    854,793.40x = 1,282,190.10 × 815,427.40
  4. Step 4: Simplify right side
    854,793.40x = 1,045,532,939,548.74
  5. Step 5: Solve for x
    x = 1,045,532,939,548.74/854,793.40
  6. Step 6: Final answer
    x = 1,223,141.10

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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.