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Finding the Fourth Proportional to 704,789.45, 972,609.44 and 382,499.55

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Solution

The fourth proportional to 704,789.45, 972,609.44 and 382,499.55 is: 527,849.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,789.45 : 972,609.44 = 382,499.55 : x
  2. Step 2: Convert to fraction form
    704,789.45/972,609.44 = 382,499.55/x
  3. Step 3: Cross multiply
    704,789.45x = 972,609.44 × 382,499.55
  4. Step 4: Simplify right side
    704,789.45x = 372,022,669,000.34
  5. Step 5: Solve for x
    x = 372,022,669,000.34/704,789.45
  6. Step 6: Final answer
    x = 527,849.37

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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.