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Finding the Fourth Proportional to 1,036.92, 1,555.38 and 973.56

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Solution

The fourth proportional to 1,036.92, 1,555.38 and 973.56 is: 1,460.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.92 : 1,555.38 = 973.56 : x
  2. Step 2: Convert to fraction form
    1,036.92/1,555.38 = 973.56/x
  3. Step 3: Cross multiply
    1,036.92x = 1,555.38 × 973.56
  4. Step 4: Simplify right side
    1,036.92x = 1,514,255.75
  5. Step 5: Solve for x
    x = 1,514,255.75/1,036.92
  6. Step 6: Final answer
    x = 1,460.34

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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.