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Finding the Fourth Proportional to 556,503.42, 834,191.64 and 219,781.50

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Solution

The fourth proportional to 556,503.42, 834,191.64 and 219,781.50 is: 329,449.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,503.42 : 834,191.64 = 219,781.50 : x
  2. Step 2: Convert to fraction form
    556,503.42/834,191.64 = 219,781.50/x
  3. Step 3: Cross multiply
    556,503.42x = 834,191.64 × 219,781.50
  4. Step 4: Simplify right side
    556,503.42x = 183,339,889,926.66
  5. Step 5: Solve for x
    x = 183,339,889,926.66/556,503.42
  6. Step 6: Final answer
    x = 329,449.71

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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.