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Finding the Fourth Proportional to 1,484.52, 2,048.65 and 925.21

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Solution

The fourth proportional to 1,484.52, 2,048.65 and 925.21 is: 1,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.52 : 2,048.65 = 925.21 : x
  2. Step 2: Convert to fraction form
    1,484.52/2,048.65 = 925.21/x
  3. Step 3: Cross multiply
    1,484.52x = 2,048.65 × 925.21
  4. Step 4: Simplify right side
    1,484.52x = 1,895,431.47
  5. Step 5: Solve for x
    x = 1,895,431.47/1,484.52
  6. Step 6: Final answer
    x = 1,276.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.