Home / 681,036.30-1,021,554.45-432,818.70

Finding the Fourth Proportional to 681,036.30, 1,021,554.45 and 432,818.70

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Solution

The fourth proportional to 681,036.30, 1,021,554.45 and 432,818.70 is: 649,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,036.30 : 1,021,554.45 = 432,818.70 : x
  2. Step 2: Convert to fraction form
    681,036.30/1,021,554.45 = 432,818.70/x
  3. Step 3: Cross multiply
    681,036.30x = 1,021,554.45 × 432,818.70
  4. Step 4: Simplify right side
    681,036.30x = 442,147,869,028.22
  5. Step 5: Solve for x
    x = 442,147,869,028.22/681,036.30
  6. Step 6: Final answer
    x = 649,228.05

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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.