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Finding the Fourth Proportional to 319,703.57, 441,190.97 and 176,463.65

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Solution

The fourth proportional to 319,703.57, 441,190.97 and 176,463.65 is: 243,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,703.57 : 441,190.97 = 176,463.65 : x
  2. Step 2: Convert to fraction form
    319,703.57/441,190.97 = 176,463.65/x
  3. Step 3: Cross multiply
    319,703.57x = 441,190.97 × 176,463.65
  4. Step 4: Simplify right side
    319,703.57x = 77,854,168,030.92
  5. Step 5: Solve for x
    x = 77,854,168,030.92/319,703.57
  6. Step 6: Final answer
    x = 243,519.86

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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.