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Finding the Fourth Proportional to 319,710.40, 441,200.39 and 176,470.48

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Solution

The fourth proportional to 319,710.40, 441,200.39 and 176,470.48 is: 243,529.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,710.40 : 441,200.39 = 176,470.48 : x
  2. Step 2: Convert to fraction form
    319,710.40/441,200.39 = 176,470.48/x
  3. Step 3: Cross multiply
    319,710.40x = 441,200.39 × 176,470.48
  4. Step 4: Simplify right side
    319,710.40x = 77,858,844,599.49
  5. Step 5: Solve for x
    x = 77,858,844,599.49/319,710.40
  6. Step 6: Final answer
    x = 243,529.28

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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.