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Finding the Fourth Proportional to 1,588.70, 2,192.60 and 925.43

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Solution

The fourth proportional to 1,588.70, 2,192.60 and 925.43 is: 1,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.70 : 2,192.60 = 925.43 : x
  2. Step 2: Convert to fraction form
    1,588.70/2,192.60 = 925.43/x
  3. Step 3: Cross multiply
    1,588.70x = 2,192.60 × 925.43
  4. Step 4: Simplify right side
    1,588.70x = 2,029,089.17
  5. Step 5: Solve for x
    x = 2,029,089.17/1,588.70
  6. Step 6: Final answer
    x = 1,277.20

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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.