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Finding the Fourth Proportional to 468,803.55, 646,952 and 253,943.61

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Solution

The fourth proportional to 468,803.55, 646,952 and 253,943.61 is: 350,443.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,803.55 : 646,952 = 253,943.61 : x
  2. Step 2: Convert to fraction form
    468,803.55/646,952 = 253,943.61/x
  3. Step 3: Cross multiply
    468,803.55x = 646,952 × 253,943.61
  4. Step 4: Simplify right side
    468,803.55x = 164,289,326,376.72
  5. Step 5: Solve for x
    x = 164,289,326,376.72/468,803.55
  6. Step 6: Final answer
    x = 350,443.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.