Home / 921,203.91-1,381,805.88-359,844.75

Finding the Fourth Proportional to 921,203.91, 1,381,805.88 and 359,844.75

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Solution

The fourth proportional to 921,203.91, 1,381,805.88 and 359,844.75 is: 539,767.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,203.91 : 1,381,805.88 = 359,844.75 : x
  2. Step 2: Convert to fraction form
    921,203.91/1,381,805.88 = 359,844.75/x
  3. Step 3: Cross multiply
    921,203.91x = 1,381,805.88 × 359,844.75
  4. Step 4: Simplify right side
    921,203.91x = 497,235,591,437.13
  5. Step 5: Solve for x
    x = 497,235,591,437.13/921,203.91
  6. Step 6: Final answer
    x = 539,767.13

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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.