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Finding the Fourth Proportional to 453,068.60, 679,991.70 and 200,737.40

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Solution

The fourth proportional to 453,068.60, 679,991.70 and 200,737.40 is: 301,278.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,068.60 : 679,991.70 = 200,737.40 : x
  2. Step 2: Convert to fraction form
    453,068.60/679,991.70 = 200,737.40/x
  3. Step 3: Cross multiply
    453,068.60x = 679,991.70 × 200,737.40
  4. Step 4: Simplify right side
    453,068.60x = 136,499,765,879.58
  5. Step 5: Solve for x
    x = 136,499,765,879.58/453,068.60
  6. Step 6: Final answer
    x = 301,278.36

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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.