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Finding the Fourth Proportional to 319,085.92, 440,331.96 and 175,842.28

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Solution

The fourth proportional to 319,085.92, 440,331.96 and 175,842.28 is: 242,658.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,085.92 : 440,331.96 = 175,842.28 : x
  2. Step 2: Convert to fraction form
    319,085.92/440,331.96 = 175,842.28/x
  3. Step 3: Cross multiply
    319,085.92x = 440,331.96 × 175,842.28
  4. Step 4: Simplify right side
    319,085.92x = 77,428,975,803.27
  5. Step 5: Solve for x
    x = 77,428,975,803.27/319,085.92
  6. Step 6: Final answer
    x = 242,658.70

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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.