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Finding the Fourth Proportional to 539,590.32, 744,932.88 and 324,783

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Solution

The fourth proportional to 539,590.32, 744,932.88 and 324,783 is: 448,380.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,590.32 : 744,932.88 = 324,783 : x
  2. Step 2: Convert to fraction form
    539,590.32/744,932.88 = 324,783/x
  3. Step 3: Cross multiply
    539,590.32x = 744,932.88 × 324,783
  4. Step 4: Simplify right side
    539,590.32x = 241,941,535,565.04
  5. Step 5: Solve for x
    x = 241,941,535,565.04/539,590.32
  6. Step 6: Final answer
    x = 448,380.05

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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.