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Finding the Fourth Proportional to 1,483.64, 2,225.16 and 510

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Solution

The fourth proportional to 1,483.64, 2,225.16 and 510 is: 764.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483.64 : 2,225.16 = 510 : x
  2. Step 2: Convert to fraction form
    1,483.64/2,225.16 = 510/x
  3. Step 3: Cross multiply
    1,483.64x = 2,225.16 × 510
  4. Step 4: Simplify right side
    1,483.64x = 1,134,831.60
  5. Step 5: Solve for x
    x = 1,134,831.60/1,483.64
  6. Step 6: Final answer
    x = 764.90

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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.