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Finding the Fourth Proportional to 560,604.47, 840,876.56 and 276,011.31

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Solution

The fourth proportional to 560,604.47, 840,876.56 and 276,011.31 is: 414,002.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,604.47 : 840,876.56 = 276,011.31 : x
  2. Step 2: Convert to fraction form
    560,604.47/840,876.56 = 276,011.31/x
  3. Step 3: Cross multiply
    560,604.47x = 840,876.56 × 276,011.31
  4. Step 4: Simplify right side
    560,604.47x = 232,091,438,952.24
  5. Step 5: Solve for x
    x = 232,091,438,952.24/560,604.47
  6. Step 6: Final answer
    x = 414,002.12

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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.