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Finding the Fourth Proportional to 556,883.28, 768,494.40 and 302,234.58

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Solution

The fourth proportional to 556,883.28, 768,494.40 and 302,234.58 is: 417,081.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,883.28 : 768,494.40 = 302,234.58 : x
  2. Step 2: Convert to fraction form
    556,883.28/768,494.40 = 302,234.58/x
  3. Step 3: Cross multiply
    556,883.28x = 768,494.40 × 302,234.58
  4. Step 4: Simplify right side
    556,883.28x = 232,265,582,216.35
  5. Step 5: Solve for x
    x = 232,265,582,216.35/556,883.28
  6. Step 6: Final answer
    x = 417,081.26

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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.