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Finding the Fourth Proportional to 622,798.01, 859,673.48 and 387,236.24

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Solution

The fourth proportional to 622,798.01, 859,673.48 and 387,236.24 is: 534,517.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,798.01 : 859,673.48 = 387,236.24 : x
  2. Step 2: Convert to fraction form
    622,798.01/859,673.48 = 387,236.24/x
  3. Step 3: Cross multiply
    622,798.01x = 859,673.48 × 387,236.24
  4. Step 4: Simplify right side
    622,798.01x = 332,896,726,022.92
  5. Step 5: Solve for x
    x = 332,896,726,022.92/622,798.01
  6. Step 6: Final answer
    x = 534,517.97

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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.