Home / 694,428.60-958,306.86-392,623.80

Finding the Fourth Proportional to 694,428.60, 958,306.86 and 392,623.80

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Solution

The fourth proportional to 694,428.60, 958,306.86 and 392,623.80 is: 541,818.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,428.60 : 958,306.86 = 392,623.80 : x
  2. Step 2: Convert to fraction form
    694,428.60/958,306.86 = 392,623.80/x
  3. Step 3: Cross multiply
    694,428.60x = 958,306.86 × 392,623.80
  4. Step 4: Simplify right side
    694,428.60x = 376,254,080,939.27
  5. Step 5: Solve for x
    x = 376,254,080,939.27/694,428.60
  6. Step 6: Final answer
    x = 541,818.24

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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.