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Finding the Fourth Proportional to 922,269.80, 1,383,404.70 and 668,359.10

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Solution

The fourth proportional to 922,269.80, 1,383,404.70 and 668,359.10 is: 1,002,538.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,269.80 : 1,383,404.70 = 668,359.10 : x
  2. Step 2: Convert to fraction form
    922,269.80/1,383,404.70 = 668,359.10/x
  3. Step 3: Cross multiply
    922,269.80x = 1,383,404.70 × 668,359.10
  4. Step 4: Simplify right side
    922,269.80x = 924,611,120,227.77
  5. Step 5: Solve for x
    x = 924,611,120,227.77/922,269.80
  6. Step 6: Final answer
    x = 1,002,538.65

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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.