Home / 353,155.41-530,066.03-128,732.76

Finding the Fourth Proportional to 353,155.41, 530,066.03 and 128,732.76

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Solution

The fourth proportional to 353,155.41, 530,066.03 and 128,732.76 is: 193,220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,155.41 : 530,066.03 = 128,732.76 : x
  2. Step 2: Convert to fraction form
    353,155.41/530,066.03 = 128,732.76/x
  3. Step 3: Cross multiply
    353,155.41x = 530,066.03 × 128,732.76
  4. Step 4: Simplify right side
    353,155.41x = 68,236,862,380.48
  5. Step 5: Solve for x
    x = 68,236,862,380.48/353,155.41
  6. Step 6: Final answer
    x = 193,220.49

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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.