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Finding the Fourth Proportional to 969,264.80, 1,454,188.80 and 520,200.80

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Solution

The fourth proportional to 969,264.80, 1,454,188.80 and 520,200.80 is: 780,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,264.80 : 1,454,188.80 = 520,200.80 : x
  2. Step 2: Convert to fraction form
    969,264.80/1,454,188.80 = 520,200.80/x
  3. Step 3: Cross multiply
    969,264.80x = 1,454,188.80 × 520,200.80
  4. Step 4: Simplify right side
    969,264.80x = 756,470,177,111.04
  5. Step 5: Solve for x
    x = 756,470,177,111.04/969,264.80
  6. Step 6: Final answer
    x = 780,457.70

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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.