Home / 563,284.09-777,363.17-321,644.28

Finding the Fourth Proportional to 563,284.09, 777,363.17 and 321,644.28

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Solution

The fourth proportional to 563,284.09, 777,363.17 and 321,644.28 is: 443,886.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,284.09 : 777,363.17 = 321,644.28 : x
  2. Step 2: Convert to fraction form
    563,284.09/777,363.17 = 321,644.28/x
  3. Step 3: Cross multiply
    563,284.09x = 777,363.17 × 321,644.28
  4. Step 4: Simplify right side
    563,284.09x = 250,034,419,860.69
  5. Step 5: Solve for x
    x = 250,034,419,860.69/563,284.09
  6. Step 6: Final answer
    x = 443,886.88

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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.