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Finding the Fourth Proportional to 319,009.69, 440,233.01 and 175,769.70

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Solution

The fourth proportional to 319,009.69, 440,233.01 and 175,769.70 is: 242,561.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,009.69 : 440,233.01 = 175,769.70 : x
  2. Step 2: Convert to fraction form
    319,009.69/440,233.01 = 175,769.70/x
  3. Step 3: Cross multiply
    319,009.69x = 440,233.01 × 175,769.70
  4. Step 4: Simplify right side
    319,009.69x = 77,379,622,227.21
  5. Step 5: Solve for x
    x = 77,379,622,227.21/319,009.69
  6. Step 6: Final answer
    x = 242,561.98

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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.