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Finding the Fourth Proportional to 605,692.20, 907,517.70 and 478,846.20

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Solution

The fourth proportional to 605,692.20, 907,517.70 and 478,846.20 is: 717,462.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,692.20 : 907,517.70 = 478,846.20 : x
  2. Step 2: Convert to fraction form
    605,692.20/907,517.70 = 478,846.20/x
  3. Step 3: Cross multiply
    605,692.20x = 907,517.70 × 478,846.20
  4. Step 4: Simplify right side
    605,692.20x = 434,561,402,077.74
  5. Step 5: Solve for x
    x = 434,561,402,077.74/605,692.20
  6. Step 6: Final answer
    x = 717,462.44

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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.