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Finding the Fourth Proportional to 704,434.32, 972,121.26 and 382,144.44

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Solution

The fourth proportional to 704,434.32, 972,121.26 and 382,144.44 is: 527,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,434.32 : 972,121.26 = 382,144.44 : x
  2. Step 2: Convert to fraction form
    704,434.32/972,121.26 = 382,144.44/x
  3. Step 3: Cross multiply
    704,434.32x = 972,121.26 × 382,144.44
  4. Step 4: Simplify right side
    704,434.32x = 371,490,734,514.79
  5. Step 5: Solve for x
    x = 371,490,734,514.79/704,434.32
  6. Step 6: Final answer
    x = 527,360.36

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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.