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Finding the Fourth Proportional to 568,436.53, 784,441.65 and 313,787.11

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Solution

The fourth proportional to 568,436.53, 784,441.65 and 313,787.11 is: 433,025.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,436.53 : 784,441.65 = 313,787.11 : x
  2. Step 2: Convert to fraction form
    568,436.53/784,441.65 = 313,787.11/x
  3. Step 3: Cross multiply
    568,436.53x = 784,441.65 × 313,787.11
  4. Step 4: Simplify right side
    568,436.53x = 246,147,678,317.13
  5. Step 5: Solve for x
    x = 246,147,678,317.13/568,436.53
  6. Step 6: Final answer
    x = 433,025.79

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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.