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Finding the Fourth Proportional to 570,756.18, 856,142.64 and 271,267.32

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Solution

The fourth proportional to 570,756.18, 856,142.64 and 271,267.32 is: 406,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,756.18 : 856,142.64 = 271,267.32 : x
  2. Step 2: Convert to fraction form
    570,756.18/856,142.64 = 271,267.32/x
  3. Step 3: Cross multiply
    570,756.18x = 856,142.64 × 271,267.32
  4. Step 4: Simplify right side
    570,756.18x = 232,243,519,490.53
  5. Step 5: Solve for x
    x = 232,243,519,490.53/570,756.18
  6. Step 6: Final answer
    x = 406,904.96

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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.