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Finding the Fourth Proportional to 922,115.60, 1,383,173.40 and 620,965.70

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Solution

The fourth proportional to 922,115.60, 1,383,173.40 and 620,965.70 is: 931,448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,115.60 : 1,383,173.40 = 620,965.70 : x
  2. Step 2: Convert to fraction form
    922,115.60/1,383,173.40 = 620,965.70/x
  3. Step 3: Cross multiply
    922,115.60x = 1,383,173.40 × 620,965.70
  4. Step 4: Simplify right side
    922,115.60x = 858,903,238,552.38
  5. Step 5: Solve for x
    x = 858,903,238,552.38/922,115.60
  6. Step 6: Final answer
    x = 931,448.55

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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.