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Finding the Fourth Proportional to 556,338.56, 834,573.12 and 177,126.40

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Solution

The fourth proportional to 556,338.56, 834,573.12 and 177,126.40 is: 265,710.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,338.56 : 834,573.12 = 177,126.40 : x
  2. Step 2: Convert to fraction form
    556,338.56/834,573.12 = 177,126.40/x
  3. Step 3: Cross multiply
    556,338.56x = 834,573.12 × 177,126.40
  4. Step 4: Simplify right side
    556,338.56x = 147,824,932,282.37
  5. Step 5: Solve for x
    x = 147,824,932,282.37/556,338.56
  6. Step 6: Final answer
    x = 265,710.38

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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.