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Finding the Fourth Proportional to 556,420.60, 834,717.76 and 177,426.28

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Solution

The fourth proportional to 556,420.60, 834,717.76 and 177,426.28 is: 266,167.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,420.60 : 834,717.76 = 177,426.28 : x
  2. Step 2: Convert to fraction form
    556,420.60/834,717.76 = 177,426.28/x
  3. Step 3: Cross multiply
    556,420.60x = 834,717.76 × 177,426.28
  4. Step 4: Simplify right side
    556,420.60x = 148,100,867,006.73
  5. Step 5: Solve for x
    x = 148,100,867,006.73/556,420.60
  6. Step 6: Final answer
    x = 266,167.12

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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.