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Finding the Fourth Proportional to 1,777.95, 2,664.77 and 1,192.93

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Solution

The fourth proportional to 1,777.95, 2,664.77 and 1,192.93 is: 1,787.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.95 : 2,664.77 = 1,192.93 : x
  2. Step 2: Convert to fraction form
    1,777.95/2,664.77 = 1,192.93/x
  3. Step 3: Cross multiply
    1,777.95x = 2,664.77 × 1,192.93
  4. Step 4: Simplify right side
    1,777.95x = 3,178,871.45
  5. Step 5: Solve for x
    x = 3,178,871.45/1,777.95
  6. Step 6: Final answer
    x = 1,787.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.