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Finding the Fourth Proportional to 556,410.71, 834,180.06 and 219,703.39

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Solution

The fourth proportional to 556,410.71, 834,180.06 and 219,703.39 is: 329,382.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,410.71 : 834,180.06 = 219,703.39 : x
  2. Step 2: Convert to fraction form
    556,410.71/834,180.06 = 219,703.39/x
  3. Step 3: Cross multiply
    556,410.71x = 834,180.06 × 219,703.39
  4. Step 4: Simplify right side
    556,410.71x = 183,272,189,247.27
  5. Step 5: Solve for x
    x = 183,272,189,247.27/556,410.71
  6. Step 6: Final answer
    x = 329,382.93

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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.