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Finding the Fourth Proportional to 633,990.90, 951,129.86 and 364,243.58

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Solution

The fourth proportional to 633,990.90, 951,129.86 and 364,243.58 is: 546,447.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,990.90 : 951,129.86 = 364,243.58 : x
  2. Step 2: Convert to fraction form
    633,990.90/951,129.86 = 364,243.58/x
  3. Step 3: Cross multiply
    633,990.90x = 951,129.86 × 364,243.58
  4. Step 4: Simplify right side
    633,990.90x = 346,442,938,674.43
  5. Step 5: Solve for x
    x = 346,442,938,674.43/633,990.90
  6. Step 6: Final answer
    x = 546,447.81

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1.5x scale

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.