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Finding the Fourth Proportional to 568,160.52, 784,038.60 and 313,508.40

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Solution

The fourth proportional to 568,160.52, 784,038.60 and 313,508.40 is: 432,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,160.52 : 784,038.60 = 313,508.40 : x
  2. Step 2: Convert to fraction form
    568,160.52/784,038.60 = 313,508.40/x
  3. Step 3: Cross multiply
    568,160.52x = 784,038.60 × 313,508.40
  4. Step 4: Simplify right side
    568,160.52x = 245,802,687,024.24
  5. Step 5: Solve for x
    x = 245,802,687,024.24/568,160.52
  6. Step 6: Final answer
    x = 432,628.95

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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.