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Finding the Fourth Proportional to 405,898.18, 560,218.71 and 244,779.46

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Solution

The fourth proportional to 405,898.18, 560,218.71 and 244,779.46 is: 337,843.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,898.18 : 560,218.71 = 244,779.46 : x
  2. Step 2: Convert to fraction form
    405,898.18/560,218.71 = 244,779.46/x
  3. Step 3: Cross multiply
    405,898.18x = 560,218.71 × 244,779.46
  4. Step 4: Simplify right side
    405,898.18x = 137,130,032,833.07
  5. Step 5: Solve for x
    x = 137,130,032,833.07/405,898.18
  6. Step 6: Final answer
    x = 337,843.43

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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.