Home / 541,411.11-811,836.32-288,623.70

Finding the Fourth Proportional to 541,411.11, 811,836.32 and 288,623.70

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Solution

The fourth proportional to 541,411.11, 811,836.32 and 288,623.70 is: 432,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,411.11 : 811,836.32 = 288,623.70 : x
  2. Step 2: Convert to fraction form
    541,411.11/811,836.32 = 288,623.70/x
  3. Step 3: Cross multiply
    541,411.11x = 811,836.32 × 288,623.70
  4. Step 4: Simplify right side
    541,411.11x = 234,315,202,472.78
  5. Step 5: Solve for x
    x = 234,315,202,472.78/541,411.11
  6. Step 6: Final answer
    x = 432,786.10

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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.