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Finding the Fourth Proportional to 568,159.52, 784,037.22 and 313,507.40

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Solution

The fourth proportional to 568,159.52, 784,037.22 and 313,507.40 is: 432,627.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,159.52 : 784,037.22 = 313,507.40 : x
  2. Step 2: Convert to fraction form
    568,159.52/784,037.22 = 313,507.40/x
  3. Step 3: Cross multiply
    568,159.52x = 784,037.22 × 313,507.40
  4. Step 4: Simplify right side
    568,159.52x = 245,801,470,345.43
  5. Step 5: Solve for x
    x = 245,801,470,345.43/568,159.52
  6. Step 6: Final answer
    x = 432,627.57

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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.