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Finding the Fourth Proportional to 301,613.94, 452,420.66 and 76,974.36

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Solution

The fourth proportional to 301,613.94, 452,420.66 and 76,974.36 is: 115,461.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,613.94 : 452,420.66 = 76,974.36 : x
  2. Step 2: Convert to fraction form
    301,613.94/452,420.66 = 76,974.36/x
  3. Step 3: Cross multiply
    301,613.94x = 452,420.66 × 76,974.36
  4. Step 4: Simplify right side
    301,613.94x = 34,824,790,369.41
  5. Step 5: Solve for x
    x = 34,824,790,369.41/301,613.94
  6. Step 6: Final answer
    x = 115,461.47

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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.