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Finding the Fourth Proportional to 319,610.70, 441,064.06 and 176,374.88

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Solution

The fourth proportional to 319,610.70, 441,064.06 and 176,374.88 is: 243,398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,610.70 : 441,064.06 = 176,374.88 : x
  2. Step 2: Convert to fraction form
    319,610.70/441,064.06 = 176,374.88/x
  3. Step 3: Cross multiply
    319,610.70x = 441,064.06 × 176,374.88
  4. Step 4: Simplify right side
    319,610.70x = 77,792,620,654.81
  5. Step 5: Solve for x
    x = 77,792,620,654.81/319,610.70
  6. Step 6: Final answer
    x = 243,398.05

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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.