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Finding the Fourth Proportional to 567,808.24, 851,712.72 and 318,665.20

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Solution

The fourth proportional to 567,808.24, 851,712.72 and 318,665.20 is: 477,998.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,808.24 : 851,712.72 = 318,665.20 : x
  2. Step 2: Convert to fraction form
    567,808.24/851,712.72 = 318,665.20/x
  3. Step 3: Cross multiply
    567,808.24x = 851,712.72 × 318,665.20
  4. Step 4: Simplify right side
    567,808.24x = 271,411,204,261.34
  5. Step 5: Solve for x
    x = 271,411,204,261.34/567,808.24
  6. Step 6: Final answer
    x = 477,998.00

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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.