Home / 930,920.80-1,396,381.20-612,056.20

Finding the Fourth Proportional to 930,920.80, 1,396,381.20 and 612,056.20

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Solution

The fourth proportional to 930,920.80, 1,396,381.20 and 612,056.20 is: 918,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,920.80 : 1,396,381.20 = 612,056.20 : x
  2. Step 2: Convert to fraction form
    930,920.80/1,396,381.20 = 612,056.20/x
  3. Step 3: Cross multiply
    930,920.80x = 1,396,381.20 × 612,056.20
  4. Step 4: Simplify right side
    930,920.80x = 854,663,771,023.44
  5. Step 5: Solve for x
    x = 854,663,771,023.44/930,920.80
  6. Step 6: Final answer
    x = 918,084.30

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Half scale
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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.