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Finding the Fourth Proportional to 319,187.39, 440,473.14 and 175,960.76

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Solution

The fourth proportional to 319,187.39, 440,473.14 and 175,960.76 is: 242,822.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,187.39 : 440,473.14 = 175,960.76 : x
  2. Step 2: Convert to fraction form
    319,187.39/440,473.14 = 175,960.76/x
  3. Step 3: Cross multiply
    319,187.39x = 440,473.14 × 175,960.76
  4. Step 4: Simplify right side
    319,187.39x = 77,505,986,271.62
  5. Step 5: Solve for x
    x = 77,505,986,271.62/319,187.39
  6. Step 6: Final answer
    x = 242,822.84

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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.