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Finding the Fourth Proportional to 827,603.97, 1,142,057.03 and 483,471.76

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Solution

The fourth proportional to 827,603.97, 1,142,057.03 and 483,471.76 is: 667,169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,603.97 : 1,142,057.03 = 483,471.76 : x
  2. Step 2: Convert to fraction form
    827,603.97/1,142,057.03 = 483,471.76/x
  3. Step 3: Cross multiply
    827,603.97x = 1,142,057.03 × 483,471.76
  4. Step 4: Simplify right side
    827,603.97x = 552,152,317,041.97
  5. Step 5: Solve for x
    x = 552,152,317,041.97/827,603.97
  6. Step 6: Final answer
    x = 667,169.73

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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.