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Finding the Fourth Proportional to 1,021.95, 1,533.02 and 466.61

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Solution

The fourth proportional to 1,021.95, 1,533.02 and 466.61 is: 699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021.95 : 1,533.02 = 466.61 : x
  2. Step 2: Convert to fraction form
    1,021.95/1,533.02 = 466.61/x
  3. Step 3: Cross multiply
    1,021.95x = 1,533.02 × 466.61
  4. Step 4: Simplify right side
    1,021.95x = 715,312.46
  5. Step 5: Solve for x
    x = 715,312.46/1,021.95
  6. Step 6: Final answer
    x = 699.95

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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.