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Finding the Fourth Proportional to 704,677.15, 972,449.53 and 382,378.96

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Solution

The fourth proportional to 704,677.15, 972,449.53 and 382,378.96 is: 527,680.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,677.15 : 972,449.53 = 382,378.96 : x
  2. Step 2: Convert to fraction form
    704,677.15/972,449.53 = 382,378.96/x
  3. Step 3: Cross multiply
    704,677.15x = 972,449.53 × 382,378.96
  4. Step 4: Simplify right side
    704,677.15x = 371,844,239,933.89
  5. Step 5: Solve for x
    x = 371,844,239,933.89/704,677.15
  6. Step 6: Final answer
    x = 527,680.29

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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.