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Finding the Fourth Proportional to 1,588.83, 2,192.90 and 925.79

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Solution

The fourth proportional to 1,588.83, 2,192.90 and 925.79 is: 1,277.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.83 : 2,192.90 = 925.79 : x
  2. Step 2: Convert to fraction form
    1,588.83/2,192.90 = 925.79/x
  3. Step 3: Cross multiply
    1,588.83x = 2,192.90 × 925.79
  4. Step 4: Simplify right side
    1,588.83x = 2,030,149.30
  5. Step 5: Solve for x
    x = 2,030,149.30/1,588.83
  6. Step 6: Final answer
    x = 1,277.77

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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.