Home / 591,112-815,739.74-336,479.56

Finding the Fourth Proportional to 591,112, 815,739.74 and 336,479.56

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Solution

The fourth proportional to 591,112, 815,739.74 and 336,479.56 is: 464,344.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,112 : 815,739.74 = 336,479.56 : x
  2. Step 2: Convert to fraction form
    591,112/815,739.74 = 336,479.56/x
  3. Step 3: Cross multiply
    591,112x = 815,739.74 × 336,479.56
  4. Step 4: Simplify right side
    591,112x = 274,479,748,789.71
  5. Step 5: Solve for x
    x = 274,479,748,789.71/591,112
  6. Step 6: Final answer
    x = 464,344.74

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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.