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Finding the Fourth Proportional to 423,699.66, 584,563.23 and 239,913.18

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Solution

The fourth proportional to 423,699.66, 584,563.23 and 239,913.18 is: 330,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,699.66 : 584,563.23 = 239,913.18 : x
  2. Step 2: Convert to fraction form
    423,699.66/584,563.23 = 239,913.18/x
  3. Step 3: Cross multiply
    423,699.66x = 584,563.23 × 239,913.18
  4. Step 4: Simplify right side
    423,699.66x = 140,244,423,420.37
  5. Step 5: Solve for x
    x = 140,244,423,420.37/423,699.66
  6. Step 6: Final answer
    x = 330,999.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.