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Finding the Fourth Proportional to 656,848.63, 985,267 and 207,569.58

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Solution

The fourth proportional to 656,848.63, 985,267 and 207,569.58 is: 311,352.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,848.63 : 985,267 = 207,569.58 : x
  2. Step 2: Convert to fraction form
    656,848.63/985,267 = 207,569.58/x
  3. Step 3: Cross multiply
    656,848.63x = 985,267 × 207,569.58
  4. Step 4: Simplify right side
    656,848.63x = 204,511,457,377.86
  5. Step 5: Solve for x
    x = 204,511,457,377.86/656,848.63
  6. Step 6: Final answer
    x = 311,352.49

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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.