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Finding the Fourth Proportional to 568,335.12, 784,246.62 and 313,669.90

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Solution

The fourth proportional to 568,335.12, 784,246.62 and 313,669.90 is: 432,833.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,335.12 : 784,246.62 = 313,669.90 : x
  2. Step 2: Convert to fraction form
    568,335.12/784,246.62 = 313,669.90/x
  3. Step 3: Cross multiply
    568,335.12x = 784,246.62 × 313,669.90
  4. Step 4: Simplify right side
    568,335.12x = 245,994,558,870.74
  5. Step 5: Solve for x
    x = 245,994,558,870.74/568,335.12
  6. Step 6: Final answer
    x = 432,833.64

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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.