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Finding the Fourth Proportional to 641,678.00, 963,463.21 and 357,922.95

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Solution

The fourth proportional to 641,678.00, 963,463.21 and 357,922.95 is: 537,412.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,678.00 : 963,463.21 = 357,922.95 : x
  2. Step 2: Convert to fraction form
    641,678.00/963,463.21 = 357,922.95/x
  3. Step 3: Cross multiply
    641,678.00x = 963,463.21 × 357,922.95
  4. Step 4: Simplify right side
    641,678.00x = 344,845,595,251.36
  5. Step 5: Solve for x
    x = 344,845,595,251.36/641,678.00
  6. Step 6: Final answer
    x = 537,412.21

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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.