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Finding the Fourth Proportional to 560,799.56, 773,876.40 and 319,059.56

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Solution

The fourth proportional to 560,799.56, 773,876.40 and 319,059.56 is: 440,286.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,799.56 : 773,876.40 = 319,059.56 : x
  2. Step 2: Convert to fraction form
    560,799.56/773,876.40 = 319,059.56/x
  3. Step 3: Cross multiply
    560,799.56x = 773,876.40 × 319,059.56
  4. Step 4: Simplify right side
    560,799.56x = 246,912,663,678.38
  5. Step 5: Solve for x
    x = 246,912,663,678.38/560,799.56
  6. Step 6: Final answer
    x = 440,286.84

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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.