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Finding the Fourth Proportional to 405,702.42, 559,826.24 and 224,385.54

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Solution

The fourth proportional to 405,702.42, 559,826.24 and 224,385.54 is: 309,628.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,702.42 : 559,826.24 = 224,385.54 : x
  2. Step 2: Convert to fraction form
    405,702.42/559,826.24 = 224,385.54/x
  3. Step 3: Cross multiply
    405,702.42x = 559,826.24 × 224,385.54
  4. Step 4: Simplify right side
    405,702.42x = 125,616,913,168.57
  5. Step 5: Solve for x
    x = 125,616,913,168.57/405,702.42
  6. Step 6: Final answer
    x = 309,628.21

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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.