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Finding the Fourth Proportional to 544,525.11, 751,334.54 and 318,126.87

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Solution

The fourth proportional to 544,525.11, 751,334.54 and 318,126.87 is: 438,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,525.11 : 751,334.54 = 318,126.87 : x
  2. Step 2: Convert to fraction form
    544,525.11/751,334.54 = 318,126.87/x
  3. Step 3: Cross multiply
    544,525.11x = 751,334.54 × 318,126.87
  4. Step 4: Simplify right side
    544,525.11x = 239,019,703,942.46
  5. Step 5: Solve for x
    x = 239,019,703,942.46/544,525.11
  6. Step 6: Final answer
    x = 438,950.75

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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.