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Finding the Fourth Proportional to 340,393.23, 469,805.64 and 197,153.22

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Solution

The fourth proportional to 340,393.23, 469,805.64 and 197,153.22 is: 272,107.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,393.23 : 469,805.64 = 197,153.22 : x
  2. Step 2: Convert to fraction form
    340,393.23/469,805.64 = 197,153.22/x
  3. Step 3: Cross multiply
    340,393.23x = 469,805.64 × 197,153.22
  4. Step 4: Simplify right side
    340,393.23x = 92,623,694,700.16
  5. Step 5: Solve for x
    x = 92,623,694,700.16/340,393.23
  6. Step 6: Final answer
    x = 272,107.92

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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.