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Finding the Fourth Proportional to 897,764.80, 1,346,647.20 and 365,667.70

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Solution

The fourth proportional to 897,764.80, 1,346,647.20 and 365,667.70 is: 548,501.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,764.80 : 1,346,647.20 = 365,667.70 : x
  2. Step 2: Convert to fraction form
    897,764.80/1,346,647.20 = 365,667.70/x
  3. Step 3: Cross multiply
    897,764.80x = 1,346,647.20 × 365,667.70
  4. Step 4: Simplify right side
    897,764.80x = 492,425,384,335.44
  5. Step 5: Solve for x
    x = 492,425,384,335.44/897,764.80
  6. Step 6: Final answer
    x = 548,501.55

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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.