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Finding the Fourth Proportional to 319,707.70, 441,196.66 and 176,467.78

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Solution

The fourth proportional to 319,707.70, 441,196.66 and 176,467.78 is: 243,525.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,707.70 : 441,196.66 = 176,467.78 : x
  2. Step 2: Convert to fraction form
    319,707.70/441,196.66 = 176,467.78/x
  3. Step 3: Cross multiply
    319,707.70x = 441,196.66 × 176,467.78
  4. Step 4: Simplify right side
    319,707.70x = 77,856,995,133.61
  5. Step 5: Solve for x
    x = 77,856,995,133.61/319,707.70
  6. Step 6: Final answer
    x = 243,525.56

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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.