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Finding the Fourth Proportional to 704,857.20, 972,676.91 and 382,560.38

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Solution

The fourth proportional to 704,857.20, 972,676.91 and 382,560.38 is: 527,919.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,857.20 : 972,676.91 = 382,560.38 : x
  2. Step 2: Convert to fraction form
    704,857.20/972,676.91 = 382,560.38/x
  3. Step 3: Cross multiply
    704,857.20x = 972,676.91 × 382,560.38
  4. Step 4: Simplify right side
    704,857.20x = 372,107,641,530.64
  5. Step 5: Solve for x
    x = 372,107,641,530.64/704,857.20
  6. Step 6: Final answer
    x = 527,919.19

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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.