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Finding the Fourth Proportional to 907,503.28, 1,361,254.92 and 242,638

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Solution

The fourth proportional to 907,503.28, 1,361,254.92 and 242,638 is: 363,957.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,503.28 : 1,361,254.92 = 242,638 : x
  2. Step 2: Convert to fraction form
    907,503.28/1,361,254.92 = 242,638/x
  3. Step 3: Cross multiply
    907,503.28x = 1,361,254.92 × 242,638
  4. Step 4: Simplify right side
    907,503.28x = 330,292,171,278.96
  5. Step 5: Solve for x
    x = 330,292,171,278.96/907,503.28
  6. Step 6: Final answer
    x = 363,957.00

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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.