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Finding the Fourth Proportional to 556,883.31, 768,494.43 and 302,234.55

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Solution

The fourth proportional to 556,883.31, 768,494.43 and 302,234.55 is: 417,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,883.31 : 768,494.43 = 302,234.55 : x
  2. Step 2: Convert to fraction form
    556,883.31/768,494.43 = 302,234.55/x
  3. Step 3: Cross multiply
    556,883.31x = 768,494.43 × 302,234.55
  4. Step 4: Simplify right side
    556,883.31x = 232,265,568,228.56
  5. Step 5: Solve for x
    x = 232,265,568,228.56/556,883.31
  6. Step 6: Final answer
    x = 417,081.22

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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.