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Finding the Fourth Proportional to 539,521.95, 744,540.42 and 297,804.66

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Solution

The fourth proportional to 539,521.95, 744,540.42 and 297,804.66 is: 410,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,521.95 : 744,540.42 = 297,804.66 : x
  2. Step 2: Convert to fraction form
    539,521.95/744,540.42 = 297,804.66/x
  3. Step 3: Cross multiply
    539,521.95x = 744,540.42 × 297,804.66
  4. Step 4: Simplify right side
    539,521.95x = 221,727,606,634.36
  5. Step 5: Solve for x
    x = 221,727,606,634.36/539,521.95
  6. Step 6: Final answer
    x = 410,970.50

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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.