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Finding the Fourth Proportional to 624,006.70, 936,010.05 and 491,296.30

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Solution

The fourth proportional to 624,006.70, 936,010.05 and 491,296.30 is: 736,944.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,006.70 : 936,010.05 = 491,296.30 : x
  2. Step 2: Convert to fraction form
    624,006.70/936,010.05 = 491,296.30/x
  3. Step 3: Cross multiply
    624,006.70x = 936,010.05 × 491,296.30
  4. Step 4: Simplify right side
    624,006.70x = 459,858,274,327.82
  5. Step 5: Solve for x
    x = 459,858,274,327.82/624,006.70
  6. Step 6: Final answer
    x = 736,944.45

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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.