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Finding the Fourth Proportional to 292,243.20, 437,587.20 and 186,489.60

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Solution

The fourth proportional to 292,243.20, 437,587.20 and 186,489.60 is: 279,238.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,243.20 : 437,587.20 = 186,489.60 : x
  2. Step 2: Convert to fraction form
    292,243.20/437,587.20 = 186,489.60/x
  3. Step 3: Cross multiply
    292,243.20x = 437,587.20 × 186,489.60
  4. Step 4: Simplify right side
    292,243.20x = 81,605,461,893.12
  5. Step 5: Solve for x
    x = 81,605,461,893.12/292,243.20
  6. Step 6: Final answer
    x = 279,238.19

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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.