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Finding the Fourth Proportional to 622,797.01, 859,672.10 and 387,235.24

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Solution

The fourth proportional to 622,797.01, 859,672.10 and 387,235.24 is: 534,516.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,797.01 : 859,672.10 = 387,235.24 : x
  2. Step 2: Convert to fraction form
    622,797.01/859,672.10 = 387,235.24/x
  3. Step 3: Cross multiply
    622,797.01x = 859,672.10 × 387,235.24
  4. Step 4: Simplify right side
    622,797.01x = 332,895,330,783.71
  5. Step 5: Solve for x
    x = 332,895,330,783.71/622,797.01
  6. Step 6: Final answer
    x = 534,516.59

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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.