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Finding the Fourth Proportional to 633,557.60, 874,309.44 and 378,908.78

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Solution

The fourth proportional to 633,557.60, 874,309.44 and 378,908.78 is: 522,894.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,557.60 : 874,309.44 = 378,908.78 : x
  2. Step 2: Convert to fraction form
    633,557.60/874,309.44 = 378,908.78/x
  3. Step 3: Cross multiply
    633,557.60x = 874,309.44 × 378,908.78
  4. Step 4: Simplify right side
    633,557.60x = 331,283,523,252.88
  5. Step 5: Solve for x
    x = 331,283,523,252.88/633,557.60
  6. Step 6: Final answer
    x = 522,894.09

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1.5x scale

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.