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Finding the Fourth Proportional to 570,765.17, 856,156.13 and 271,276.31

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Solution

The fourth proportional to 570,765.17, 856,156.13 and 271,276.31 is: 406,918.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,765.17 : 856,156.13 = 271,276.31 : x
  2. Step 2: Convert to fraction form
    570,765.17/856,156.13 = 271,276.31/x
  3. Step 3: Cross multiply
    570,765.17x = 856,156.13 × 271,276.31
  4. Step 4: Simplify right side
    570,765.17x = 232,254,875,730.28
  5. Step 5: Solve for x
    x = 232,254,875,730.28/570,765.17
  6. Step 6: Final answer
    x = 406,918.45

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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.