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Finding the Fourth Proportional to 561,692.28, 842,538.42 and 187,715.28

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Solution

The fourth proportional to 561,692.28, 842,538.42 and 187,715.28 is: 281,572.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,692.28 : 842,538.42 = 187,715.28 : x
  2. Step 2: Convert to fraction form
    561,692.28/842,538.42 = 187,715.28/x
  3. Step 3: Cross multiply
    561,692.28x = 842,538.42 × 187,715.28
  4. Step 4: Simplify right side
    561,692.28x = 158,157,335,421.06
  5. Step 5: Solve for x
    x = 158,157,335,421.06/561,692.28
  6. Step 6: Final answer
    x = 281,572.92

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Double scale
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Similar ratio
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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.