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Finding the Fourth Proportional to 567,637.60, 851,132.40 and 212,663.20

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Solution

The fourth proportional to 567,637.60, 851,132.40 and 212,663.20 is: 318,873.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,637.60 : 851,132.40 = 212,663.20 : x
  2. Step 2: Convert to fraction form
    567,637.60/851,132.40 = 212,663.20/x
  3. Step 3: Cross multiply
    567,637.60x = 851,132.40 × 212,663.20
  4. Step 4: Simplify right side
    567,637.60x = 181,004,539,807.68
  5. Step 5: Solve for x
    x = 181,004,539,807.68/567,637.60
  6. Step 6: Final answer
    x = 318,873.41

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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.