Home / 500,206.06-690,350.10-285,296.86

Finding the Fourth Proportional to 500,206.06, 690,350.10 and 285,296.86

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Solution

The fourth proportional to 500,206.06, 690,350.10 and 285,296.86 is: 393,747.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,206.06 : 690,350.10 = 285,296.86 : x
  2. Step 2: Convert to fraction form
    500,206.06/690,350.10 = 285,296.86/x
  3. Step 3: Cross multiply
    500,206.06x = 690,350.10 × 285,296.86
  4. Step 4: Simplify right side
    500,206.06x = 196,954,715,830.69
  5. Step 5: Solve for x
    x = 196,954,715,830.69/500,206.06
  6. Step 6: Final answer
    x = 393,747.16

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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.