Home / 539,560.72-744,478.32-313,084.72

Finding the Fourth Proportional to 539,560.72, 744,478.32 and 313,084.72

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Solution

The fourth proportional to 539,560.72, 744,478.32 and 313,084.72 is: 431,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,560.72 : 744,478.32 = 313,084.72 : x
  2. Step 2: Convert to fraction form
    539,560.72/744,478.32 = 313,084.72/x
  3. Step 3: Cross multiply
    539,560.72x = 744,478.32 × 313,084.72
  4. Step 4: Simplify right side
    539,560.72x = 233,084,786,363.27
  5. Step 5: Solve for x
    x = 233,084,786,363.27/539,560.72
  6. Step 6: Final answer
    x = 431,989.91

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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.