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Finding the Fourth Proportional to 449,225.64, 619,707.69 and 267,809.76

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Solution

The fourth proportional to 449,225.64, 619,707.69 and 267,809.76 is: 369,444.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,225.64 : 619,707.69 = 267,809.76 : x
  2. Step 2: Convert to fraction form
    449,225.64/619,707.69 = 267,809.76/x
  3. Step 3: Cross multiply
    449,225.64x = 619,707.69 × 267,809.76
  4. Step 4: Simplify right side
    449,225.64x = 165,963,767,729.05
  5. Step 5: Solve for x
    x = 165,963,767,729.05/449,225.64
  6. Step 6: Final answer
    x = 369,444.11

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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.