Home / 778,601.60-1,167,902.40-621,137.60

Finding the Fourth Proportional to 778,601.60, 1,167,902.40 and 621,137.60

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Solution

The fourth proportional to 778,601.60, 1,167,902.40 and 621,137.60 is: 931,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,601.60 : 1,167,902.40 = 621,137.60 : x
  2. Step 2: Convert to fraction form
    778,601.60/1,167,902.40 = 621,137.60/x
  3. Step 3: Cross multiply
    778,601.60x = 1,167,902.40 × 621,137.60
  4. Step 4: Simplify right side
    778,601.60x = 725,428,093,770.24
  5. Step 5: Solve for x
    x = 725,428,093,770.24/778,601.60
  6. Step 6: Final answer
    x = 931,706.40

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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.