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Finding the Fourth Proportional to 624,141.20, 936,211.80 and 606,645.20

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Solution

The fourth proportional to 624,141.20, 936,211.80 and 606,645.20 is: 909,967.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,141.20 : 936,211.80 = 606,645.20 : x
  2. Step 2: Convert to fraction form
    624,141.20/936,211.80 = 606,645.20/x
  3. Step 3: Cross multiply
    624,141.20x = 936,211.80 × 606,645.20
  4. Step 4: Simplify right side
    624,141.20x = 567,948,394,653.36
  5. Step 5: Solve for x
    x = 567,948,394,653.36/624,141.20
  6. Step 6: Final answer
    x = 909,967.80

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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.