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Finding the Fourth Proportional to 310,827.20, 466,240.80 and 248,619.20

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Solution

The fourth proportional to 310,827.20, 466,240.80 and 248,619.20 is: 372,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,827.20 : 466,240.80 = 248,619.20 : x
  2. Step 2: Convert to fraction form
    310,827.20/466,240.80 = 248,619.20/x
  3. Step 3: Cross multiply
    310,827.20x = 466,240.80 × 248,619.20
  4. Step 4: Simplify right side
    310,827.20x = 115,916,414,703.36
  5. Step 5: Solve for x
    x = 115,916,414,703.36/310,827.20
  6. Step 6: Final answer
    x = 372,928.80

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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.