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Finding the Fourth Proportional to 1,592.40, 2,386.00 and 974.81

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Solution

The fourth proportional to 1,592.40, 2,386.00 and 974.81 is: 1,460.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.40 : 2,386.00 = 974.81 : x
  2. Step 2: Convert to fraction form
    1,592.40/2,386.00 = 974.81/x
  3. Step 3: Cross multiply
    1,592.40x = 2,386.00 × 974.81
  4. Step 4: Simplify right side
    1,592.40x = 2,325,890.42
  5. Step 5: Solve for x
    x = 2,325,890.42/1,592.40
  6. Step 6: Final answer
    x = 1,460.62

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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.