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Finding the Fourth Proportional to 301,611.72, 452,417.28 and 76,972.16

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Solution

The fourth proportional to 301,611.72, 452,417.28 and 76,972.16 is: 115,458.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,611.72 : 452,417.28 = 76,972.16 : x
  2. Step 2: Convert to fraction form
    301,611.72/452,417.28 = 76,972.16/x
  3. Step 3: Cross multiply
    301,611.72x = 452,417.28 × 76,972.16
  4. Step 4: Simplify right side
    301,611.72x = 34,823,535,262.92
  5. Step 5: Solve for x
    x = 34,823,535,262.92/301,611.72
  6. Step 6: Final answer
    x = 115,458.16

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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.