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Finding the Fourth Proportional to 1,655.48, 2,483.63 and 925.54

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Solution

The fourth proportional to 1,655.48, 2,483.63 and 925.54 is: 1,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.48 : 2,483.63 = 925.54 : x
  2. Step 2: Convert to fraction form
    1,655.48/2,483.63 = 925.54/x
  3. Step 3: Cross multiply
    1,655.48x = 2,483.63 × 925.54
  4. Step 4: Simplify right side
    1,655.48x = 2,298,698.91
  5. Step 5: Solve for x
    x = 2,298,698.91/1,655.48
  6. Step 6: Final answer
    x = 1,388.54

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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.