Home / 853,685.04-1,279,504.60-397,661.52

Finding the Fourth Proportional to 853,685.04, 1,279,504.60 and 397,661.52

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Solution

The fourth proportional to 853,685.04, 1,279,504.60 and 397,661.52 is: 596,015.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,685.04 : 1,279,504.60 = 397,661.52 : x
  2. Step 2: Convert to fraction form
    853,685.04/1,279,504.60 = 397,661.52/x
  3. Step 3: Cross multiply
    853,685.04x = 1,279,504.60 × 397,661.52
  4. Step 4: Simplify right side
    853,685.04x = 508,809,744,082.99
  5. Step 5: Solve for x
    x = 508,809,744,082.99/853,685.04
  6. Step 6: Final answer
    x = 596,015.77

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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.