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Finding the Fourth Proportional to 704,486.88, 972,192.20 and 382,196.88

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Solution

The fourth proportional to 704,486.88, 972,192.20 and 382,196.88 is: 527,431.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,486.88 : 972,192.20 = 382,196.88 : x
  2. Step 2: Convert to fraction form
    704,486.88/972,192.20 = 382,196.88/x
  3. Step 3: Cross multiply
    704,486.88x = 972,192.20 × 382,196.88
  4. Step 4: Simplify right side
    704,486.88x = 371,568,825,600.34
  5. Step 5: Solve for x
    x = 371,568,825,600.34/704,486.88
  6. Step 6: Final answer
    x = 527,431.86

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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.