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Finding the Fourth Proportional to 484,426.96, 668,515.24 and 266,660.80

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Solution

The fourth proportional to 484,426.96, 668,515.24 and 266,660.80 is: 367,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,426.96 : 668,515.24 = 266,660.80 : x
  2. Step 2: Convert to fraction form
    484,426.96/668,515.24 = 266,660.80/x
  3. Step 3: Cross multiply
    484,426.96x = 668,515.24 × 266,660.80
  4. Step 4: Simplify right side
    484,426.96x = 178,266,808,710.59
  5. Step 5: Solve for x
    x = 178,266,808,710.59/484,426.96
  6. Step 6: Final answer
    x = 367,995.23

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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.