Home / 686,161.32-1,029,341.22-259,581.48

Finding the Fourth Proportional to 686,161.32, 1,029,341.22 and 259,581.48

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Solution

The fourth proportional to 686,161.32, 1,029,341.22 and 259,581.48 is: 389,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,161.32 : 1,029,341.22 = 259,581.48 : x
  2. Step 2: Convert to fraction form
    686,161.32/1,029,341.22 = 259,581.48/x
  3. Step 3: Cross multiply
    686,161.32x = 1,029,341.22 × 259,581.48
  4. Step 4: Simplify right side
    686,161.32x = 267,197,917,312.61
  5. Step 5: Solve for x
    x = 267,197,917,312.61/686,161.32
  6. Step 6: Final answer
    x = 389,409.76

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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.