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Finding the Fourth Proportional to 319,480.48, 440,880.60 and 176,246.56

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Solution

The fourth proportional to 319,480.48, 440,880.60 and 176,246.56 is: 243,218.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,480.48 : 440,880.60 = 176,246.56 : x
  2. Step 2: Convert to fraction form
    319,480.48/440,880.60 = 176,246.56/x
  3. Step 3: Cross multiply
    319,480.48x = 440,880.60 × 176,246.56
  4. Step 4: Simplify right side
    319,480.48x = 77,703,689,120.74
  5. Step 5: Solve for x
    x = 77,703,689,120.74/319,480.48
  6. Step 6: Final answer
    x = 243,218.89

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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.