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Finding the Fourth Proportional to 3,316.64, 4,973.24 and 976.34

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Solution

The fourth proportional to 3,316.64, 4,973.24 and 976.34 is: 1,464.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.64 : 4,973.24 = 976.34 : x
  2. Step 2: Convert to fraction form
    3,316.64/4,973.24 = 976.34/x
  3. Step 3: Cross multiply
    3,316.64x = 4,973.24 × 976.34
  4. Step 4: Simplify right side
    3,316.64x = 4,855,554.49
  5. Step 5: Solve for x
    x = 4,855,554.49/3,316.64
  6. Step 6: Final answer
    x = 1,464.00

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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.