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Finding the Fourth Proportional to 1,230,333.52, 1,696,800 and 800,456.80

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Solution

The fourth proportional to 1,230,333.52, 1,696,800 and 800,456.80 is: 1,103,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,333.52 : 1,696,800 = 800,456.80 : x
  2. Step 2: Convert to fraction form
    1,230,333.52/1,696,800 = 800,456.80/x
  3. Step 3: Cross multiply
    1,230,333.52x = 1,696,800 × 800,456.80
  4. Step 4: Simplify right side
    1,230,333.52x = 1,358,215,098,240
  5. Step 5: Solve for x
    x = 1,358,215,098,240/1,230,333.52
  6. Step 6: Final answer
    x = 1,103,940.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.