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Finding the Fourth Proportional to 622,952.63, 933,071.72 and 409,479.56

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Solution

The fourth proportional to 622,952.63, 933,071.72 and 409,479.56 is: 613,327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,952.63 : 933,071.72 = 409,479.56 : x
  2. Step 2: Convert to fraction form
    622,952.63/933,071.72 = 409,479.56/x
  3. Step 3: Cross multiply
    622,952.63x = 933,071.72 × 409,479.56
  4. Step 4: Simplify right side
    622,952.63x = 382,073,790,641.29
  5. Step 5: Solve for x
    x = 382,073,790,641.29/622,952.63
  6. Step 6: Final answer
    x = 613,327.20

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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.