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Finding the Fourth Proportional to 1,473.17, 2,210.21 and 651.33

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Solution

The fourth proportional to 1,473.17, 2,210.21 and 651.33 is: 977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.17 : 2,210.21 = 651.33 : x
  2. Step 2: Convert to fraction form
    1,473.17/2,210.21 = 651.33/x
  3. Step 3: Cross multiply
    1,473.17x = 2,210.21 × 651.33
  4. Step 4: Simplify right side
    1,473.17x = 1,439,572.82
  5. Step 5: Solve for x
    x = 1,439,572.82/1,473.17
  6. Step 6: Final answer
    x = 977.20

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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.