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Finding the Fourth Proportional to 624,010.70, 936,016.05 and 308,516.30

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Solution

The fourth proportional to 624,010.70, 936,016.05 and 308,516.30 is: 462,774.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,010.70 : 936,016.05 = 308,516.30 : x
  2. Step 2: Convert to fraction form
    624,010.70/936,016.05 = 308,516.30/x
  3. Step 3: Cross multiply
    624,010.70x = 936,016.05 × 308,516.30
  4. Step 4: Simplify right side
    624,010.70x = 288,776,208,486.62
  5. Step 5: Solve for x
    x = 288,776,208,486.62/624,010.70
  6. Step 6: Final answer
    x = 462,774.45

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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.