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Finding the Fourth Proportional to 539,528.78, 744,549.75 and 297,811.41

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Solution

The fourth proportional to 539,528.78, 744,549.75 and 297,811.41 is: 410,979.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,528.78 : 744,549.75 = 297,811.41 : x
  2. Step 2: Convert to fraction form
    539,528.78/744,549.75 = 297,811.41/x
  3. Step 3: Cross multiply
    539,528.78x = 744,549.75 × 297,811.41
  4. Step 4: Simplify right side
    539,528.78x = 221,735,410,862.65
  5. Step 5: Solve for x
    x = 221,735,410,862.65/539,528.78
  6. Step 6: Final answer
    x = 410,979.77

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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.