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Finding the Fourth Proportional to 541,499.99, 747,325.24 and 312,065.46

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Solution

The fourth proportional to 541,499.99, 747,325.24 and 312,065.46 is: 430,682.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,499.99 : 747,325.24 = 312,065.46 : x
  2. Step 2: Convert to fraction form
    541,499.99/747,325.24 = 312,065.46/x
  3. Step 3: Cross multiply
    541,499.99x = 747,325.24 × 312,065.46
  4. Step 4: Simplify right side
    541,499.99x = 233,214,394,010.05
  5. Step 5: Solve for x
    x = 233,214,394,010.05/541,499.99
  6. Step 6: Final answer
    x = 430,682.18

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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.