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Finding the Fourth Proportional to 827,603.60, 1,241,290.20 and 266,694.80

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Solution

The fourth proportional to 827,603.60, 1,241,290.20 and 266,694.80 is: 400,005.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,603.60 : 1,241,290.20 = 266,694.80 : x
  2. Step 2: Convert to fraction form
    827,603.60/1,241,290.20 = 266,694.80/x
  3. Step 3: Cross multiply
    827,603.60x = 1,241,290.20 × 266,694.80
  4. Step 4: Simplify right side
    827,603.60x = 331,045,641,630.96
  5. Step 5: Solve for x
    x = 331,045,641,630.96/827,603.60
  6. Step 6: Final answer
    x = 400,005.08

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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.