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Finding the Fourth Proportional to 347,616.10, 487,712.30 and 347,616.10

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Solution

The fourth proportional to 347,616.10, 487,712.30 and 347,616.10 is: 487,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,616.10 : 487,712.30 = 347,616.10 : x
  2. Step 2: Convert to fraction form
    347,616.10/487,712.30 = 347,616.10/x
  3. Step 3: Cross multiply
    347,616.10x = 487,712.30 × 347,616.10
  4. Step 4: Simplify right side
    347,616.10x = 169,536,647,648.03
  5. Step 5: Solve for x
    x = 169,536,647,648.03/347,616.10
  6. Step 6: Final answer
    x = 487,712.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.