Home / 821,686.55-1,133,906.27-459,113.40

Finding the Fourth Proportional to 821,686.55, 1,133,906.27 and 459,113.40

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Solution

The fourth proportional to 821,686.55, 1,133,906.27 and 459,113.40 is: 633,564.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,686.55 : 1,133,906.27 = 459,113.40 : x
  2. Step 2: Convert to fraction form
    821,686.55/1,133,906.27 = 459,113.40/x
  3. Step 3: Cross multiply
    821,686.55x = 1,133,906.27 × 459,113.40
  4. Step 4: Simplify right side
    821,686.55x = 520,591,560,605.45
  5. Step 5: Solve for x
    x = 520,591,560,605.45/821,686.55
  6. Step 6: Final answer
    x = 633,564.66

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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.