Home / 690,923.09-953,449.61-384,983.66

Finding the Fourth Proportional to 690,923.09, 953,449.61 and 384,983.66

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Solution

The fourth proportional to 690,923.09, 953,449.61 and 384,983.66 is: 531,263.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,923.09 : 953,449.61 = 384,983.66 : x
  2. Step 2: Convert to fraction form
    690,923.09/953,449.61 = 384,983.66/x
  3. Step 3: Cross multiply
    690,923.09x = 953,449.61 × 384,983.66
  4. Step 4: Simplify right side
    690,923.09x = 367,062,520,942.08
  5. Step 5: Solve for x
    x = 367,062,520,942.08/690,923.09
  6. Step 6: Final answer
    x = 531,263.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.