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Finding the Fourth Proportional to 266,881.53, 400,323.01 and 98,328.84

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Solution

The fourth proportional to 266,881.53, 400,323.01 and 98,328.84 is: 147,493.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,881.53 : 400,323.01 = 98,328.84 : x
  2. Step 2: Convert to fraction form
    266,881.53/400,323.01 = 98,328.84/x
  3. Step 3: Cross multiply
    266,881.53x = 400,323.01 × 98,328.84
  4. Step 4: Simplify right side
    266,881.53x = 39,363,297,198.61
  5. Step 5: Solve for x
    x = 39,363,297,198.61/266,881.53
  6. Step 6: Final answer
    x = 147,493.52

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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.