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Finding the Fourth Proportional to 483,603.41, 725,404.21 and 128,617.77

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Solution

The fourth proportional to 483,603.41, 725,404.21 and 128,617.77 is: 192,926.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,603.41 : 725,404.21 = 128,617.77 : x
  2. Step 2: Convert to fraction form
    483,603.41/725,404.21 = 128,617.77/x
  3. Step 3: Cross multiply
    483,603.41x = 725,404.21 × 128,617.77
  4. Step 4: Simplify right side
    483,603.41x = 93,299,874,237.53
  5. Step 5: Solve for x
    x = 93,299,874,237.53/483,603.41
  6. Step 6: Final answer
    x = 192,926.42

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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.