Home / 813,709.45-1,122,985.58-451,247.01

Finding the Fourth Proportional to 813,709.45, 1,122,985.58 and 451,247.01

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Solution

The fourth proportional to 813,709.45, 1,122,985.58 and 451,247.01 is: 622,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,709.45 : 1,122,985.58 = 451,247.01 : x
  2. Step 2: Convert to fraction form
    813,709.45/1,122,985.58 = 451,247.01/x
  3. Step 3: Cross multiply
    813,709.45x = 1,122,985.58 × 451,247.01
  4. Step 4: Simplify right side
    813,709.45x = 506,743,885,248.12
  5. Step 5: Solve for x
    x = 506,743,885,248.12/813,709.45
  6. Step 6: Final answer
    x = 622,757.77

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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.