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Finding the Fourth Proportional to 713,215.45, 984,338.13 and 441,370.90

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Solution

The fourth proportional to 713,215.45, 984,338.13 and 441,370.90 is: 609,154.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,215.45 : 984,338.13 = 441,370.90 : x
  2. Step 2: Convert to fraction form
    713,215.45/984,338.13 = 441,370.90/x
  3. Step 3: Cross multiply
    713,215.45x = 984,338.13 × 441,370.90
  4. Step 4: Simplify right side
    713,215.45x = 434,458,206,342.42
  5. Step 5: Solve for x
    x = 434,458,206,342.42/713,215.45
  6. Step 6: Final answer
    x = 609,154.23

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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.