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Finding the Fourth Proportional to 553,443.84, 825,440.22 and 469,754.64

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Solution

The fourth proportional to 553,443.84, 825,440.22 and 469,754.64 is: 700,620.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,443.84 : 825,440.22 = 469,754.64 : x
  2. Step 2: Convert to fraction form
    553,443.84/825,440.22 = 469,754.64/x
  3. Step 3: Cross multiply
    553,443.84x = 825,440.22 × 469,754.64
  4. Step 4: Simplify right side
    553,443.84x = 387,754,373,387.62
  5. Step 5: Solve for x
    x = 387,754,373,387.62/553,443.84
  6. Step 6: Final answer
    x = 700,620.99

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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.