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Finding the Fourth Proportional to 301,336.80, 452,005.20 and 76,696.80

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Solution

The fourth proportional to 301,336.80, 452,005.20 and 76,696.80 is: 115,045.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,336.80 : 452,005.20 = 76,696.80 : x
  2. Step 2: Convert to fraction form
    301,336.80/452,005.20 = 76,696.80/x
  3. Step 3: Cross multiply
    301,336.80x = 452,005.20 × 76,696.80
  4. Step 4: Simplify right side
    301,336.80x = 34,667,352,423.36
  5. Step 5: Solve for x
    x = 34,667,352,423.36/301,336.80
  6. Step 6: Final answer
    x = 115,045.20

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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.