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Finding the Fourth Proportional to 530,813.80, 796,220.70 and 175,839.40

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Solution

The fourth proportional to 530,813.80, 796,220.70 and 175,839.40 is: 263,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,813.80 : 796,220.70 = 175,839.40 : x
  2. Step 2: Convert to fraction form
    530,813.80/796,220.70 = 175,839.40/x
  3. Step 3: Cross multiply
    530,813.80x = 796,220.70 × 175,839.40
  4. Step 4: Simplify right side
    530,813.80x = 140,006,970,155.58
  5. Step 5: Solve for x
    x = 140,006,970,155.58/530,813.80
  6. Step 6: Final answer
    x = 263,759.10

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Similar ratio
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1.5x scale

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.