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Finding the Fourth Proportional to 364,678.52, 547,072.48 and 127,979.52

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Solution

The fourth proportional to 364,678.52, 547,072.48 and 127,979.52 is: 191,988.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,678.52 : 547,072.48 = 127,979.52 : x
  2. Step 2: Convert to fraction form
    364,678.52/547,072.48 = 127,979.52/x
  3. Step 3: Cross multiply
    364,678.52x = 547,072.48 × 127,979.52
  4. Step 4: Simplify right side
    364,678.52x = 70,014,073,395.61
  5. Step 5: Solve for x
    x = 70,014,073,395.61/364,678.52
  6. Step 6: Final answer
    x = 191,988.48

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1.5x scale

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.