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Finding the Fourth Proportional to 292,091.40, 438,137.10 and 179,898.30

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Solution

The fourth proportional to 292,091.40, 438,137.10 and 179,898.30 is: 269,847.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,091.40 : 438,137.10 = 179,898.30 : x
  2. Step 2: Convert to fraction form
    292,091.40/438,137.10 = 179,898.30/x
  3. Step 3: Cross multiply
    292,091.40x = 438,137.10 × 179,898.30
  4. Step 4: Simplify right side
    292,091.40x = 78,820,119,456.93
  5. Step 5: Solve for x
    x = 78,820,119,456.93/292,091.40
  6. Step 6: Final answer
    x = 269,847.45

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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.