Home / 808,211.40-1,212,317.10-650,747.40

Finding the Fourth Proportional to 808,211.40, 1,212,317.10 and 650,747.40

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Solution

The fourth proportional to 808,211.40, 1,212,317.10 and 650,747.40 is: 976,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,211.40 : 1,212,317.10 = 650,747.40 : x
  2. Step 2: Convert to fraction form
    808,211.40/1,212,317.10 = 650,747.40/x
  3. Step 3: Cross multiply
    808,211.40x = 1,212,317.10 × 650,747.40
  4. Step 4: Simplify right side
    808,211.40x = 788,912,200,800.54
  5. Step 5: Solve for x
    x = 788,912,200,800.54/808,211.40
  6. Step 6: Final answer
    x = 976,121.10

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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.