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Finding the Fourth Proportional to 292,608.70, 403,800 and 158,472.70

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Solution

The fourth proportional to 292,608.70, 403,800 and 158,472.70 is: 218,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,608.70 : 403,800 = 158,472.70 : x
  2. Step 2: Convert to fraction form
    292,608.70/403,800 = 158,472.70/x
  3. Step 3: Cross multiply
    292,608.70x = 403,800 × 158,472.70
  4. Step 4: Simplify right side
    292,608.70x = 63,991,274,241
  5. Step 5: Solve for x
    x = 63,991,274,241/292,608.70
  6. Step 6: Final answer
    x = 218,692.32

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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.