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Finding the Fourth Proportional to 575,980.43, 864,356.31 and 239,021.42

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Solution

The fourth proportional to 575,980.43, 864,356.31 and 239,021.42 is: 358,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,980.43 : 864,356.31 = 239,021.42 : x
  2. Step 2: Convert to fraction form
    575,980.43/864,356.31 = 239,021.42/x
  3. Step 3: Cross multiply
    575,980.43x = 864,356.31 × 239,021.42
  4. Step 4: Simplify right side
    575,980.43x = 206,599,672,602.16
  5. Step 5: Solve for x
    x = 206,599,672,602.16/575,980.43
  6. Step 6: Final answer
    x = 358,692.17

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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.