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Finding the Fourth Proportional to 292,334.40, 437,810.40 and 198,331.20

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Solution

The fourth proportional to 292,334.40, 437,810.40 and 198,331.20 is: 297,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,334.40 : 437,810.40 = 198,331.20 : x
  2. Step 2: Convert to fraction form
    292,334.40/437,810.40 = 198,331.20/x
  3. Step 3: Cross multiply
    292,334.40x = 437,810.40 × 198,331.20
  4. Step 4: Simplify right side
    292,334.40x = 86,831,462,004.48
  5. Step 5: Solve for x
    x = 86,831,462,004.48/292,334.40
  6. Step 6: Final answer
    x = 297,027.86

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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.