Home / 389,106.20-537,086.22-228,013.16

Finding the Fourth Proportional to 389,106.20, 537,086.22 and 228,013.16

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Solution

The fourth proportional to 389,106.20, 537,086.22 and 228,013.16 is: 314,728.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,106.20 : 537,086.22 = 228,013.16 : x
  2. Step 2: Convert to fraction form
    389,106.20/537,086.22 = 228,013.16/x
  3. Step 3: Cross multiply
    389,106.20x = 537,086.22 × 228,013.16
  4. Step 4: Simplify right side
    389,106.20x = 122,462,726,214.66
  5. Step 5: Solve for x
    x = 122,462,726,214.66/389,106.20
  6. Step 6: Final answer
    x = 314,728.28

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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.