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Finding the Fourth Proportional to 343,840.80, 474,482.16 and 192,934.56

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Solution

The fourth proportional to 343,840.80, 474,482.16 and 192,934.56 is: 266,239.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,840.80 : 474,482.16 = 192,934.56 : x
  2. Step 2: Convert to fraction form
    343,840.80/474,482.16 = 192,934.56/x
  3. Step 3: Cross multiply
    343,840.80x = 474,482.16 × 192,934.56
  4. Step 4: Simplify right side
    343,840.80x = 91,544,006,767.45
  5. Step 5: Solve for x
    x = 91,544,006,767.45/343,840.80
  6. Step 6: Final answer
    x = 266,239.51

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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.