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Finding the Fourth Proportional to 319,702.73, 441,158.31 and 176,453.51

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Solution

The fourth proportional to 319,702.73, 441,158.31 and 176,453.51 is: 243,488.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,702.73 : 441,158.31 = 176,453.51 : x
  2. Step 2: Convert to fraction form
    319,702.73/441,158.31 = 176,453.51/x
  3. Step 3: Cross multiply
    319,702.73x = 441,158.31 × 176,453.51
  4. Step 4: Simplify right side
    319,702.73x = 77,843,930,059.38
  5. Step 5: Solve for x
    x = 77,843,930,059.38/319,702.73
  6. Step 6: Final answer
    x = 243,488.48

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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.