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Finding the Fourth Proportional to 483,254.30, 666,869.34 and 289,768.80

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Solution

The fourth proportional to 483,254.30, 666,869.34 and 289,768.80 is: 399,868.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,254.30 : 666,869.34 = 289,768.80 : x
  2. Step 2: Convert to fraction form
    483,254.30/666,869.34 = 289,768.80/x
  3. Step 3: Cross multiply
    483,254.30x = 666,869.34 × 289,768.80
  4. Step 4: Simplify right side
    483,254.30x = 193,237,928,408.59
  5. Step 5: Solve for x
    x = 193,237,928,408.59/483,254.30
  6. Step 6: Final answer
    x = 399,868.00

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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.