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Finding the Fourth Proportional to 292,816.80, 438,350.40 and 174,427.20

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Solution

The fourth proportional to 292,816.80, 438,350.40 and 174,427.20 is: 261,119.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,816.80 : 438,350.40 = 174,427.20 : x
  2. Step 2: Convert to fraction form
    292,816.80/438,350.40 = 174,427.20/x
  3. Step 3: Cross multiply
    292,816.80x = 438,350.40 × 174,427.20
  4. Step 4: Simplify right side
    292,816.80x = 76,460,232,890.88
  5. Step 5: Solve for x
    x = 76,460,232,890.88/292,816.80
  6. Step 6: Final answer
    x = 261,119.69

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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.