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Finding the Fourth Proportional to 3,053.88, 4,578.96 and 972.99

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Solution

The fourth proportional to 3,053.88, 4,578.96 and 972.99 is: 1,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,053.88 : 4,578.96 = 972.99 : x
  2. Step 2: Convert to fraction form
    3,053.88/4,578.96 = 972.99/x
  3. Step 3: Cross multiply
    3,053.88x = 4,578.96 × 972.99
  4. Step 4: Simplify right side
    3,053.88x = 4,455,282.29
  5. Step 5: Solve for x
    x = 4,455,282.29/3,053.88
  6. Step 6: Final answer
    x = 1,458.89

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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.