Home / 812,586.60-1,121,372.64-450,002.52

Finding the Fourth Proportional to 812,586.60, 1,121,372.64 and 450,002.52

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Solution

The fourth proportional to 812,586.60, 1,121,372.64 and 450,002.52 is: 621,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,586.60 : 1,121,372.64 = 450,002.52 : x
  2. Step 2: Convert to fraction form
    812,586.60/1,121,372.64 = 450,002.52/x
  3. Step 3: Cross multiply
    812,586.60x = 1,121,372.64 × 450,002.52
  4. Step 4: Simplify right side
    812,586.60x = 504,620,513,859.05
  5. Step 5: Solve for x
    x = 504,620,513,859.05/812,586.60
  6. Step 6: Final answer
    x = 621,005.21

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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.