Home / 588,210.75-811,731.56-319,938.75

Finding the Fourth Proportional to 588,210.75, 811,731.56 and 319,938.75

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Solution

The fourth proportional to 588,210.75, 811,731.56 and 319,938.75 is: 441,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,210.75 : 811,731.56 = 319,938.75 : x
  2. Step 2: Convert to fraction form
    588,210.75/811,731.56 = 319,938.75/x
  3. Step 3: Cross multiply
    588,210.75x = 811,731.56 × 319,938.75
  4. Step 4: Simplify right side
    588,210.75x = 259,704,379,042.26
  5. Step 5: Solve for x
    x = 259,704,379,042.26/588,210.75
  6. Step 6: Final answer
    x = 441,515.87

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Double scale
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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.