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Finding the Fourth Proportional to 345,377.51, 476,635.68 and 192,415.61

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Solution

The fourth proportional to 345,377.51, 476,635.68 and 192,415.61 is: 265,541.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,377.51 : 476,635.68 = 192,415.61 : x
  2. Step 2: Convert to fraction form
    345,377.51/476,635.68 = 192,415.61/x
  3. Step 3: Cross multiply
    345,377.51x = 476,635.68 × 192,415.61
  4. Step 4: Simplify right side
    345,377.51x = 91,712,145,114.96
  5. Step 5: Solve for x
    x = 91,712,145,114.96/345,377.51
  6. Step 6: Final answer
    x = 265,541.74

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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.