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Finding the Fourth Proportional to 477,288.44, 658,640.34 and 262,415.72

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Solution

The fourth proportional to 477,288.44, 658,640.34 and 262,415.72 is: 362,123.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,288.44 : 658,640.34 = 262,415.72 : x
  2. Step 2: Convert to fraction form
    477,288.44/658,640.34 = 262,415.72/x
  3. Step 3: Cross multiply
    477,288.44x = 658,640.34 × 262,415.72
  4. Step 4: Simplify right side
    477,288.44x = 172,837,579,042.15
  5. Step 5: Solve for x
    x = 172,837,579,042.15/477,288.44
  6. Step 6: Final answer
    x = 362,123.96

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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.