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Finding the Fourth Proportional to 316,040.80, 474,903.60 and 173,999.20

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Solution

The fourth proportional to 316,040.80, 474,903.60 and 173,999.20 is: 261,462.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,040.80 : 474,903.60 = 173,999.20 : x
  2. Step 2: Convert to fraction form
    316,040.80/474,903.60 = 173,999.20/x
  3. Step 3: Cross multiply
    316,040.80x = 474,903.60 × 173,999.20
  4. Step 4: Simplify right side
    316,040.80x = 82,632,846,477.12
  5. Step 5: Solve for x
    x = 82,632,846,477.12/316,040.80
  6. Step 6: Final answer
    x = 261,462.59

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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.