Home / 665,091.81-997,785.27-191,740.23

Finding the Fourth Proportional to 665,091.81, 997,785.27 and 191,740.23

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Solution

The fourth proportional to 665,091.81, 997,785.27 and 191,740.23 is: 287,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,091.81 : 997,785.27 = 191,740.23 : x
  2. Step 2: Convert to fraction form
    665,091.81/997,785.27 = 191,740.23/x
  3. Step 3: Cross multiply
    665,091.81x = 997,785.27 × 191,740.23
  4. Step 4: Simplify right side
    665,091.81x = 191,315,577,160.41
  5. Step 5: Solve for x
    x = 191,315,577,160.41/665,091.81
  6. Step 6: Final answer
    x = 287,652.88

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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.