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Finding the Fourth Proportional to 626,778.70, 940,302.93 and 194,487.55

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Solution

The fourth proportional to 626,778.70, 940,302.93 and 194,487.55 is: 291,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,778.70 : 940,302.93 = 194,487.55 : x
  2. Step 2: Convert to fraction form
    626,778.70/940,302.93 = 194,487.55/x
  3. Step 3: Cross multiply
    626,778.70x = 940,302.93 × 194,487.55
  4. Step 4: Simplify right side
    626,778.70x = 182,877,213,113.52
  5. Step 5: Solve for x
    x = 182,877,213,113.52/626,778.70
  6. Step 6: Final answer
    x = 291,773.18

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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.