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Finding the Fourth Proportional to 304,836.80, 457,250.08 and 83,220.80

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Solution

The fourth proportional to 304,836.80, 457,250.08 and 83,220.80 is: 124,829.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,836.80 : 457,250.08 = 83,220.80 : x
  2. Step 2: Convert to fraction form
    304,836.80/457,250.08 = 83,220.80/x
  3. Step 3: Cross multiply
    304,836.80x = 457,250.08 × 83,220.80
  4. Step 4: Simplify right side
    304,836.80x = 38,052,717,457.66
  5. Step 5: Solve for x
    x = 38,052,717,457.66/304,836.80
  6. Step 6: Final answer
    x = 124,829.80

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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.