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Finding the Fourth Proportional to 622,951.92, 935,018.64 and 385,576.56

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Solution

The fourth proportional to 622,951.92, 935,018.64 and 385,576.56 is: 578,730.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,951.92 : 935,018.64 = 385,576.56 : x
  2. Step 2: Convert to fraction form
    622,951.92/935,018.64 = 385,576.56/x
  3. Step 3: Cross multiply
    622,951.92x = 935,018.64 × 385,576.56
  4. Step 4: Simplify right side
    622,951.92x = 360,521,270,747.08
  5. Step 5: Solve for x
    x = 360,521,270,747.08/622,951.92
  6. Step 6: Final answer
    x = 578,730.49

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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.