Home / 936,839.80-1,405,915.80-404,742.70

Finding the Fourth Proportional to 936,839.80, 1,405,915.80 and 404,742.70

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Solution

The fourth proportional to 936,839.80, 1,405,915.80 and 404,742.70 is: 607,397.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,839.80 : 1,405,915.80 = 404,742.70 : x
  2. Step 2: Convert to fraction form
    936,839.80/1,405,915.80 = 404,742.70/x
  3. Step 3: Cross multiply
    936,839.80x = 1,405,915.80 × 404,742.70
  4. Step 4: Simplify right side
    936,839.80x = 569,034,156,864.66
  5. Step 5: Solve for x
    x = 569,034,156,864.66/936,839.80
  6. Step 6: Final answer
    x = 607,397.50

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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.