Home / 725,964.90-1,088,947.35-411,036.90

Finding the Fourth Proportional to 725,964.90, 1,088,947.35 and 411,036.90

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Solution

The fourth proportional to 725,964.90, 1,088,947.35 and 411,036.90 is: 616,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,964.90 : 1,088,947.35 = 411,036.90 : x
  2. Step 2: Convert to fraction form
    725,964.90/1,088,947.35 = 411,036.90/x
  3. Step 3: Cross multiply
    725,964.90x = 1,088,947.35 × 411,036.90
  4. Step 4: Simplify right side
    725,964.90x = 447,597,543,007.22
  5. Step 5: Solve for x
    x = 447,597,543,007.22/725,964.90
  6. Step 6: Final answer
    x = 616,555.35

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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.