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Finding the Fourth Proportional to 301,717.45, 452,576.16 and 77,078.37

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Solution

The fourth proportional to 301,717.45, 452,576.16 and 77,078.37 is: 115,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,717.45 : 452,576.16 = 77,078.37 : x
  2. Step 2: Convert to fraction form
    301,717.45/452,576.16 = 77,078.37/x
  3. Step 3: Cross multiply
    301,717.45x = 452,576.16 × 77,078.37
  4. Step 4: Simplify right side
    301,717.45x = 34,883,832,328.27
  5. Step 5: Solve for x
    x = 34,883,832,328.27/301,717.45
  6. Step 6: Final answer
    x = 115,617.55

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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.