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Finding the Fourth Proportional to 671,903.41, 927,218.76 and 365,978.83

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Solution

The fourth proportional to 671,903.41, 927,218.76 and 365,978.83 is: 505,046.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,903.41 : 927,218.76 = 365,978.83 : x
  2. Step 2: Convert to fraction form
    671,903.41/927,218.76 = 365,978.83/x
  3. Step 3: Cross multiply
    671,903.41x = 927,218.76 × 365,978.83
  4. Step 4: Simplify right side
    671,903.41x = 339,342,436,938.85
  5. Step 5: Solve for x
    x = 339,342,436,938.85/671,903.41
  6. Step 6: Final answer
    x = 505,046.46

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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.