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Finding the Fourth Proportional to 399,712.23, 599,818.47 and 250,244.46

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Solution

The fourth proportional to 399,712.23, 599,818.47 and 250,244.46 is: 375,523.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,712.23 : 599,818.47 = 250,244.46 : x
  2. Step 2: Convert to fraction form
    399,712.23/599,818.47 = 250,244.46/x
  3. Step 3: Cross multiply
    399,712.23x = 599,818.47 × 250,244.46
  4. Step 4: Simplify right side
    399,712.23x = 150,101,249,123.18
  5. Step 5: Solve for x
    x = 150,101,249,123.18/399,712.23
  6. Step 6: Final answer
    x = 375,523.28

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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.