Home / 855,923.40-1,283,301.90-406,859.40

Finding the Fourth Proportional to 855,923.40, 1,283,301.90 and 406,859.40

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Solution

The fourth proportional to 855,923.40, 1,283,301.90 and 406,859.40 is: 610,011.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,923.40 : 1,283,301.90 = 406,859.40 : x
  2. Step 2: Convert to fraction form
    855,923.40/1,283,301.90 = 406,859.40/x
  3. Step 3: Cross multiply
    855,923.40x = 1,283,301.90 × 406,859.40
  4. Step 4: Simplify right side
    855,923.40x = 522,123,441,052.86
  5. Step 5: Solve for x
    x = 522,123,441,052.86/855,923.40
  6. Step 6: Final answer
    x = 610,011.88

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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.