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Finding the Fourth Proportional to 704,676.74, 972,456.49 and 382,386.83

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Solution

The fourth proportional to 704,676.74, 972,456.49 and 382,386.83 is: 527,695.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,676.74 : 972,456.49 = 382,386.83 : x
  2. Step 2: Convert to fraction form
    704,676.74/972,456.49 = 382,386.83/x
  3. Step 3: Cross multiply
    704,676.74x = 972,456.49 × 382,386.83
  4. Step 4: Simplify right side
    704,676.74x = 371,854,555,999.20
  5. Step 5: Solve for x
    x = 371,854,555,999.20/704,676.74
  6. Step 6: Final answer
    x = 527,695.23

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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.