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Finding the Fourth Proportional to 539,550.72, 744,464.52 and 313,074.72

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Solution

The fourth proportional to 539,550.72, 744,464.52 and 313,074.72 is: 431,976.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,550.72 : 744,464.52 = 313,074.72 : x
  2. Step 2: Convert to fraction form
    539,550.72/744,464.52 = 313,074.72/x
  3. Step 3: Cross multiply
    539,550.72x = 744,464.52 × 313,074.72
  4. Step 4: Simplify right side
    539,550.72x = 233,073,021,148.93
  5. Step 5: Solve for x
    x = 233,073,021,148.93/539,550.72
  6. Step 6: Final answer
    x = 431,976.11

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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.