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Finding the Fourth Proportional to 296,614.60, 444,878.70 and 86,230.60

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Solution

The fourth proportional to 296,614.60, 444,878.70 and 86,230.60 is: 129,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,614.60 : 444,878.70 = 86,230.60 : x
  2. Step 2: Convert to fraction form
    296,614.60/444,878.70 = 86,230.60/x
  3. Step 3: Cross multiply
    296,614.60x = 444,878.70 × 86,230.60
  4. Step 4: Simplify right side
    296,614.60x = 38,362,157,228.22
  5. Step 5: Solve for x
    x = 38,362,157,228.22/296,614.60
  6. Step 6: Final answer
    x = 129,333.34

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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.