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Finding the Fourth Proportional to 704,676.15, 972,448.16 and 382,377.96

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Solution

The fourth proportional to 704,676.15, 972,448.16 and 382,377.96 is: 527,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,676.15 : 972,448.16 = 382,377.96 : x
  2. Step 2: Convert to fraction form
    704,676.15/972,448.16 = 382,377.96/x
  3. Step 3: Cross multiply
    704,676.15x = 972,448.16 × 382,377.96
  4. Step 4: Simplify right side
    704,676.15x = 371,842,741,714.66
  5. Step 5: Solve for x
    x = 371,842,741,714.66/704,676.15
  6. Step 6: Final answer
    x = 527,678.91

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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.