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Finding the Fourth Proportional to 568,366.85, 784,346.32 and 313,718.10

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Solution

The fourth proportional to 568,366.85, 784,346.32 and 313,718.10 is: 432,931.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,366.85 : 784,346.32 = 313,718.10 : x
  2. Step 2: Convert to fraction form
    568,366.85/784,346.32 = 313,718.10/x
  3. Step 3: Cross multiply
    568,366.85x = 784,346.32 × 313,718.10
  4. Step 4: Simplify right side
    568,366.85x = 246,063,638,428.96
  5. Step 5: Solve for x
    x = 246,063,638,428.96/568,366.85
  6. Step 6: Final answer
    x = 432,931.02

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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.