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Finding the Fourth Proportional to 570,748.17, 856,130.64 and 271,259.31

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Solution

The fourth proportional to 570,748.17, 856,130.64 and 271,259.31 is: 406,892.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,748.17 : 856,130.64 = 271,259.31 : x
  2. Step 2: Convert to fraction form
    570,748.17/856,130.64 = 271,259.31/x
  3. Step 3: Cross multiply
    570,748.17x = 856,130.64 × 271,259.31
  4. Step 4: Simplify right side
    570,748.17x = 232,233,406,676.26
  5. Step 5: Solve for x
    x = 232,233,406,676.26/570,748.17
  6. Step 6: Final answer
    x = 406,892.95

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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.