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Finding the Fourth Proportional to 556,901.31, 768,524.56 and 302,252.50

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Solution

The fourth proportional to 556,901.31, 768,524.56 and 302,252.50 is: 417,108.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,901.31 : 768,524.56 = 302,252.50 : x
  2. Step 2: Convert to fraction form
    556,901.31/768,524.56 = 302,252.50/x
  3. Step 3: Cross multiply
    556,901.31x = 768,524.56 × 302,252.50
  4. Step 4: Simplify right side
    556,901.31x = 232,288,465,728.78
  5. Step 5: Solve for x
    x = 232,288,465,728.78/556,901.31
  6. Step 6: Final answer
    x = 417,108.86

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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.