Home / 389,276.32-537,201.68-228,099.28

Finding the Fourth Proportional to 389,276.32, 537,201.68 and 228,099.28

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Solution

The fourth proportional to 389,276.32, 537,201.68 and 228,099.28 is: 314,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,276.32 : 537,201.68 = 228,099.28 : x
  2. Step 2: Convert to fraction form
    389,276.32/537,201.68 = 228,099.28/x
  3. Step 3: Cross multiply
    389,276.32x = 537,201.68 × 228,099.28
  4. Step 4: Simplify right side
    389,276.32x = 122,535,316,422.79
  5. Step 5: Solve for x
    x = 122,535,316,422.79/389,276.32
  6. Step 6: Final answer
    x = 314,777.22

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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.