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Finding the Fourth Proportional to 570,612.60, 855,530.10 and 271,236.60

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Solution

The fourth proportional to 570,612.60, 855,530.10 and 271,236.60 is: 406,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,612.60 : 855,530.10 = 271,236.60 : x
  2. Step 2: Convert to fraction form
    570,612.60/855,530.10 = 271,236.60/x
  3. Step 3: Cross multiply
    570,612.60x = 855,530.10 × 271,236.60
  4. Step 4: Simplify right side
    570,612.60x = 232,051,075,521.66
  5. Step 5: Solve for x
    x = 232,051,075,521.66/570,612.60
  6. Step 6: Final answer
    x = 406,670.09

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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.