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Finding the Fourth Proportional to 461,598, 636,928.28 and 308,390.56

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Solution

The fourth proportional to 461,598, 636,928.28 and 308,390.56 is: 425,527.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,598 : 636,928.28 = 308,390.56 : x
  2. Step 2: Convert to fraction form
    461,598/636,928.28 = 308,390.56/x
  3. Step 3: Cross multiply
    461,598x = 636,928.28 × 308,390.56
  4. Step 4: Simplify right side
    461,598x = 196,422,668,949.04
  5. Step 5: Solve for x
    x = 196,422,668,949.04/461,598
  6. Step 6: Final answer
    x = 425,527.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.