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Finding the Fourth Proportional to 969,636.10, 1,454,454.15 and 686,200.90

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Solution

The fourth proportional to 969,636.10, 1,454,454.15 and 686,200.90 is: 1,029,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,636.10 : 1,454,454.15 = 686,200.90 : x
  2. Step 2: Convert to fraction form
    969,636.10/1,454,454.15 = 686,200.90/x
  3. Step 3: Cross multiply
    969,636.10x = 1,454,454.15 × 686,200.90
  4. Step 4: Simplify right side
    969,636.10x = 998,047,746,738.74
  5. Step 5: Solve for x
    x = 998,047,746,738.74/969,636.10
  6. Step 6: Final answer
    x = 1,029,301.35

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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.