Home / 545,731.40-818,686.70-171,664.20

Finding the Fourth Proportional to 545,731.40, 818,686.70 and 171,664.20

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Solution

The fourth proportional to 545,731.40, 818,686.70 and 171,664.20 is: 257,524.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,731.40 : 818,686.70 = 171,664.20 : x
  2. Step 2: Convert to fraction form
    545,731.40/818,686.70 = 171,664.20/x
  3. Step 3: Cross multiply
    545,731.40x = 818,686.70 × 171,664.20
  4. Step 4: Simplify right side
    545,731.40x = 140,539,197,406.14
  5. Step 5: Solve for x
    x = 140,539,197,406.14/545,731.40
  6. Step 6: Final answer
    x = 257,524.48

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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.