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Finding the Fourth Proportional to 560,671.32, 841,378.43 and 308,128.17

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Solution

The fourth proportional to 560,671.32, 841,378.43 and 308,128.17 is: 462,396.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,671.32 : 841,378.43 = 308,128.17 : x
  2. Step 2: Convert to fraction form
    560,671.32/841,378.43 = 308,128.17/x
  3. Step 3: Cross multiply
    560,671.32x = 841,378.43 × 308,128.17
  4. Step 4: Simplify right side
    560,671.32x = 259,252,394,372.73
  5. Step 5: Solve for x
    x = 259,252,394,372.73/560,671.32
  6. Step 6: Final answer
    x = 462,396.39

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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.