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Finding the Fourth Proportional to 424,100.85, 636,084.45 and 352,513.47

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Solution

The fourth proportional to 424,100.85, 636,084.45 and 352,513.47 is: 528,714.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,100.85 : 636,084.45 = 352,513.47 : x
  2. Step 2: Convert to fraction form
    424,100.85/636,084.45 = 352,513.47/x
  3. Step 3: Cross multiply
    424,100.85x = 636,084.45 × 352,513.47
  4. Step 4: Simplify right side
    424,100.85x = 224,228,336,682.54
  5. Step 5: Solve for x
    x = 224,228,336,682.54/424,100.85
  6. Step 6: Final answer
    x = 528,714.66

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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.