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Finding the Fourth Proportional to 437,700.78, 654,684.90 and 268,806.06

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Solution

The fourth proportional to 437,700.78, 654,684.90 and 268,806.06 is: 402,062.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,700.78 : 654,684.90 = 268,806.06 : x
  2. Step 2: Convert to fraction form
    437,700.78/654,684.90 = 268,806.06/x
  3. Step 3: Cross multiply
    437,700.78x = 654,684.90 × 268,806.06
  4. Step 4: Simplify right side
    437,700.78x = 175,983,268,510.49
  5. Step 5: Solve for x
    x = 175,983,268,510.49/437,700.78
  6. Step 6: Final answer
    x = 402,062.95

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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.