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Finding the Fourth Proportional to 1,429.09, 1,973.09 and 1,096.92

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Solution

The fourth proportional to 1,429.09, 1,973.09 and 1,096.92 is: 1,514.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.09 : 1,973.09 = 1,096.92 : x
  2. Step 2: Convert to fraction form
    1,429.09/1,973.09 = 1,096.92/x
  3. Step 3: Cross multiply
    1,429.09x = 1,973.09 × 1,096.92
  4. Step 4: Simplify right side
    1,429.09x = 2,164,324.63
  5. Step 5: Solve for x
    x = 2,164,324.63/1,429.09
  6. Step 6: Final answer
    x = 1,514.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.