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Finding the Fourth Proportional to 319,272.60, 440,595.81 and 176,034.90

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Solution

The fourth proportional to 319,272.60, 440,595.81 and 176,034.90 is: 242,927.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,272.60 : 440,595.81 = 176,034.90 : x
  2. Step 2: Convert to fraction form
    319,272.60/440,595.81 = 176,034.90/x
  3. Step 3: Cross multiply
    319,272.60x = 440,595.81 × 176,034.90
  4. Step 4: Simplify right side
    319,272.60x = 77,560,239,353.77
  5. Step 5: Solve for x
    x = 77,560,239,353.77/319,272.60
  6. Step 6: Final answer
    x = 242,927.95

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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.