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Finding the Fourth Proportional to 319,246.95, 440,587.05 and 176,020.59

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Solution

The fourth proportional to 319,246.95, 440,587.05 and 176,020.59 is: 242,922.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,246.95 : 440,587.05 = 176,020.59 : x
  2. Step 2: Convert to fraction form
    319,246.95/440,587.05 = 176,020.59/x
  3. Step 3: Cross multiply
    319,246.95x = 440,587.05 × 176,020.59
  4. Step 4: Simplify right side
    319,246.95x = 77,552,392,487.36
  5. Step 5: Solve for x
    x = 77,552,392,487.36/319,246.95
  6. Step 6: Final answer
    x = 242,922.89

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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.