Home / 815,698.66-1,222,290.46-436,669.70

Finding the Fourth Proportional to 815,698.66, 1,222,290.46 and 436,669.70

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Solution

The fourth proportional to 815,698.66, 1,222,290.46 and 436,669.70 is: 654,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,698.66 : 1,222,290.46 = 436,669.70 : x
  2. Step 2: Convert to fraction form
    815,698.66/1,222,290.46 = 436,669.70/x
  3. Step 3: Cross multiply
    815,698.66x = 1,222,290.46 × 436,669.70
  4. Step 4: Simplify right side
    815,698.66x = 533,737,208,481.06
  5. Step 5: Solve for x
    x = 533,737,208,481.06/815,698.66
  6. Step 6: Final answer
    x = 654,331.35

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Double scale
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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.