Home / 398,623.20-597,934.80-382,876.80

Finding the Fourth Proportional to 398,623.20, 597,934.80 and 382,876.80

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Solution

The fourth proportional to 398,623.20, 597,934.80 and 382,876.80 is: 574,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,623.20 : 597,934.80 = 382,876.80 : x
  2. Step 2: Convert to fraction form
    398,623.20/597,934.80 = 382,876.80/x
  3. Step 3: Cross multiply
    398,623.20x = 597,934.80 × 382,876.80
  4. Step 4: Simplify right side
    398,623.20x = 228,935,362,832.64
  5. Step 5: Solve for x
    x = 228,935,362,832.64/398,623.20
  6. Step 6: Final answer
    x = 574,315.20

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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.