Home / 821,197.25-1,231,510.55-457,014.57

Finding the Fourth Proportional to 821,197.25, 1,231,510.55 and 457,014.57

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Solution

The fourth proportional to 821,197.25, 1,231,510.55 and 457,014.57 is: 685,363.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,197.25 : 1,231,510.55 = 457,014.57 : x
  2. Step 2: Convert to fraction form
    821,197.25/1,231,510.55 = 457,014.57/x
  3. Step 3: Cross multiply
    821,197.25x = 1,231,510.55 × 457,014.57
  4. Step 4: Simplify right side
    821,197.25x = 562,818,260,126.18
  5. Step 5: Solve for x
    x = 562,818,260,126.18/821,197.25
  6. Step 6: Final answer
    x = 685,363.06

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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.