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Finding the Fourth Proportional to 620,277.70, 930,416.55 and 265,327.60

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Solution

The fourth proportional to 620,277.70, 930,416.55 and 265,327.60 is: 397,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,277.70 : 930,416.55 = 265,327.60 : x
  2. Step 2: Convert to fraction form
    620,277.70/930,416.55 = 265,327.60/x
  3. Step 3: Cross multiply
    620,277.70x = 930,416.55 × 265,327.60
  4. Step 4: Simplify right side
    620,277.70x = 246,865,190,211.78
  5. Step 5: Solve for x
    x = 246,865,190,211.78/620,277.70
  6. Step 6: Final answer
    x = 397,991.40

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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.