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Finding the Fourth Proportional to 454,923.84, 627,130.24 and 318,527.84

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Solution

The fourth proportional to 454,923.84, 627,130.24 and 318,527.84 is: 439,103.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,923.84 : 627,130.24 = 318,527.84 : x
  2. Step 2: Convert to fraction form
    454,923.84/627,130.24 = 318,527.84/x
  3. Step 3: Cross multiply
    454,923.84x = 627,130.24 × 318,527.84
  4. Step 4: Simplify right side
    454,923.84x = 199,758,440,745.88
  5. Step 5: Solve for x
    x = 199,758,440,745.88/454,923.84
  6. Step 6: Final answer
    x = 439,103.04

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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.