Home / 1,242,057.60-1,863,086.40-443,365.20

Finding the Fourth Proportional to 1,242,057.60, 1,863,086.40 and 443,365.20

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Solution

The fourth proportional to 1,242,057.60, 1,863,086.40 and 443,365.20 is: 665,047.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,057.60 : 1,863,086.40 = 443,365.20 : x
  2. Step 2: Convert to fraction form
    1,242,057.60/1,863,086.40 = 443,365.20/x
  3. Step 3: Cross multiply
    1,242,057.60x = 1,863,086.40 × 443,365.20
  4. Step 4: Simplify right side
    1,242,057.60x = 826,027,674,353.28
  5. Step 5: Solve for x
    x = 826,027,674,353.28/1,242,057.60
  6. Step 6: Final answer
    x = 665,047.80

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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.