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Finding the Fourth Proportional to 1,588.96, 2,192.96 and 999.52

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Solution

The fourth proportional to 1,588.96, 2,192.96 and 999.52 is: 1,379.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.96 : 2,192.96 = 999.52 : x
  2. Step 2: Convert to fraction form
    1,588.96/2,192.96 = 999.52/x
  3. Step 3: Cross multiply
    1,588.96x = 2,192.96 × 999.52
  4. Step 4: Simplify right side
    1,588.96x = 2,191,907.38
  5. Step 5: Solve for x
    x = 2,191,907.38/1,588.96
  6. Step 6: Final answer
    x = 1,379.46

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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.