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Finding the Fourth Proportional to 568,431.52, 784,426.08 and 313,776.16

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Solution

The fourth proportional to 568,431.52, 784,426.08 and 313,776.16 is: 433,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,431.52 : 784,426.08 = 313,776.16 : x
  2. Step 2: Convert to fraction form
    568,431.52/784,426.08 = 313,776.16/x
  3. Step 3: Cross multiply
    568,431.52x = 784,426.08 × 313,776.16
  4. Step 4: Simplify right side
    568,431.52x = 246,134,203,186.25
  5. Step 5: Solve for x
    x = 246,134,203,186.25/568,431.52
  6. Step 6: Final answer
    x = 433,005.90

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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.