Home / 815,697.17-1,222,288.22-436,668.20

Finding the Fourth Proportional to 815,697.17, 1,222,288.22 and 436,668.20

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Solution

The fourth proportional to 815,697.17, 1,222,288.22 and 436,668.20 is: 654,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,697.17 : 1,222,288.22 = 436,668.20 : x
  2. Step 2: Convert to fraction form
    815,697.17/1,222,288.22 = 436,668.20/x
  3. Step 3: Cross multiply
    815,697.17x = 1,222,288.22 × 436,668.20
  4. Step 4: Simplify right side
    815,697.17x = 533,734,391,888.83
  5. Step 5: Solve for x
    x = 533,734,391,888.83/815,697.17
  6. Step 6: Final answer
    x = 654,329.10

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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.