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Finding the Fourth Proportional to 589,643.64, 813,883.32 and 382,906.56

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Solution

The fourth proportional to 589,643.64, 813,883.32 and 382,906.56 is: 528,524.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,643.64 : 813,883.32 = 382,906.56 : x
  2. Step 2: Convert to fraction form
    589,643.64/813,883.32 = 382,906.56/x
  3. Step 3: Cross multiply
    589,643.64x = 813,883.32 × 382,906.56
  4. Step 4: Simplify right side
    589,643.64x = 311,641,262,302.58
  5. Step 5: Solve for x
    x = 311,641,262,302.58/589,643.64
  6. Step 6: Final answer
    x = 528,524.76

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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.