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Finding the Fourth Proportional to 419,776.44, 626,441.28 and 374,932.02

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Solution

The fourth proportional to 419,776.44, 626,441.28 and 374,932.02 is: 559,519.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,776.44 : 626,441.28 = 374,932.02 : x
  2. Step 2: Convert to fraction form
    419,776.44/626,441.28 = 374,932.02/x
  3. Step 3: Cross multiply
    419,776.44x = 626,441.28 × 374,932.02
  4. Step 4: Simplify right side
    419,776.44x = 234,872,894,521.79
  5. Step 5: Solve for x
    x = 234,872,894,521.79/419,776.44
  6. Step 6: Final answer
    x = 559,519.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.