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Finding the Fourth Proportional to 539,521.87, 744,540.25 and 297,804.49

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Solution

The fourth proportional to 539,521.87, 744,540.25 and 297,804.49 is: 410,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,521.87 : 744,540.25 = 297,804.49 : x
  2. Step 2: Convert to fraction form
    539,521.87/744,540.25 = 297,804.49/x
  3. Step 3: Cross multiply
    539,521.87x = 744,540.25 × 297,804.49
  4. Step 4: Simplify right side
    539,521.87x = 221,727,429,435.72
  5. Step 5: Solve for x
    x = 221,727,429,435.72/539,521.87
  6. Step 6: Final answer
    x = 410,970.24

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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.