Home / 807,998.20-1,115,045.28-445,436.20

Finding the Fourth Proportional to 807,998.20, 1,115,045.28 and 445,436.20

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Solution

The fourth proportional to 807,998.20, 1,115,045.28 and 445,436.20 is: 614,706.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,998.20 : 1,115,045.28 = 445,436.20 : x
  2. Step 2: Convert to fraction form
    807,998.20/1,115,045.28 = 445,436.20/x
  3. Step 3: Cross multiply
    807,998.20x = 1,115,045.28 × 445,436.20
  4. Step 4: Simplify right side
    807,998.20x = 496,681,532,351.14
  5. Step 5: Solve for x
    x = 496,681,532,351.14/807,998.20
  6. Step 6: Final answer
    x = 614,706.24

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.