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Finding the Fourth Proportional to 527,235.80, 790,853.34 and 211,692.56

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Solution

The fourth proportional to 527,235.80, 790,853.34 and 211,692.56 is: 317,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,235.80 : 790,853.34 = 211,692.56 : x
  2. Step 2: Convert to fraction form
    527,235.80/790,853.34 = 211,692.56/x
  3. Step 3: Cross multiply
    527,235.80x = 790,853.34 × 211,692.56
  4. Step 4: Simplify right side
    527,235.80x = 167,417,768,129.15
  5. Step 5: Solve for x
    x = 167,417,768,129.15/527,235.80
  6. Step 6: Final answer
    x = 317,538.70

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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.