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Finding the Fourth Proportional to 319,487.76, 440,901.36 and 176,249.52

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Solution

The fourth proportional to 319,487.76, 440,901.36 and 176,249.52 is: 243,228.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,487.76 : 440,901.36 = 176,249.52 : x
  2. Step 2: Convert to fraction form
    319,487.76/440,901.36 = 176,249.52/x
  3. Step 3: Cross multiply
    319,487.76x = 440,901.36 × 176,249.52
  4. Step 4: Simplify right side
    319,487.76x = 77,708,653,067.35
  5. Step 5: Solve for x
    x = 77,708,653,067.35/319,487.76
  6. Step 6: Final answer
    x = 243,228.89

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1.5x scale

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.