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Finding the Fourth Proportional to 556,447.32, 834,110.15 and 219,357.51

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Solution

The fourth proportional to 556,447.32, 834,110.15 and 219,357.51 is: 328,815.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,447.32 : 834,110.15 = 219,357.51 : x
  2. Step 2: Convert to fraction form
    556,447.32/834,110.15 = 219,357.51/x
  3. Step 3: Cross multiply
    556,447.32x = 834,110.15 × 219,357.51
  4. Step 4: Simplify right side
    556,447.32x = 182,968,324,472.94
  5. Step 5: Solve for x
    x = 182,968,324,472.94/556,447.32
  6. Step 6: Final answer
    x = 328,815.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.