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Finding the Fourth Proportional to 343,780.92, 474,415.97 and 190,820.93

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Solution

The fourth proportional to 343,780.92, 474,415.97 and 190,820.93 is: 263,331.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,780.92 : 474,415.97 = 190,820.93 : x
  2. Step 2: Convert to fraction form
    343,780.92/474,415.97 = 190,820.93/x
  3. Step 3: Cross multiply
    343,780.92x = 474,415.97 × 190,820.93
  4. Step 4: Simplify right side
    343,780.92x = 90,528,493,276.07
  5. Step 5: Solve for x
    x = 90,528,493,276.07/343,780.92
  6. Step 6: Final answer
    x = 263,331.93

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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.