Home / 816,519.42-1,222,158.66-436,490.10

Finding the Fourth Proportional to 816,519.42, 1,222,158.66 and 436,490.10

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Solution

The fourth proportional to 816,519.42, 1,222,158.66 and 436,490.10 is: 653,334.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,519.42 : 1,222,158.66 = 436,490.10 : x
  2. Step 2: Convert to fraction form
    816,519.42/1,222,158.66 = 436,490.10/x
  3. Step 3: Cross multiply
    816,519.42x = 1,222,158.66 × 436,490.10
  4. Step 4: Simplify right side
    816,519.42x = 533,460,155,719.27
  5. Step 5: Solve for x
    x = 533,460,155,719.27/816,519.42
  6. Step 6: Final answer
    x = 653,334.31

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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.