Home / 563,451.66-777,411.98-321,686.10

Finding the Fourth Proportional to 563,451.66, 777,411.98 and 321,686.10

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Solution

The fourth proportional to 563,451.66, 777,411.98 and 321,686.10 is: 443,840.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,451.66 : 777,411.98 = 321,686.10 : x
  2. Step 2: Convert to fraction form
    563,451.66/777,411.98 = 321,686.10/x
  3. Step 3: Cross multiply
    563,451.66x = 777,411.98 × 321,686.10
  4. Step 4: Simplify right side
    563,451.66x = 250,082,625,350.90
  5. Step 5: Solve for x
    x = 250,082,625,350.90/563,451.66
  6. Step 6: Final answer
    x = 443,840.43

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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.