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Finding the Fourth Proportional to 539,512.10, 744,069.61 and 324,612.02

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Solution

The fourth proportional to 539,512.10, 744,069.61 and 324,612.02 is: 447,689.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,512.10 : 744,069.61 = 324,612.02 : x
  2. Step 2: Convert to fraction form
    539,512.10/744,069.61 = 324,612.02/x
  3. Step 3: Cross multiply
    539,512.10x = 744,069.61 × 324,612.02
  4. Step 4: Simplify right side
    539,512.10x = 241,533,939,122.71
  5. Step 5: Solve for x
    x = 241,533,939,122.71/539,512.10
  6. Step 6: Final answer
    x = 447,689.57

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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.