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Finding the Fourth Proportional to 292,889.12, 439,372.97 and 103,304.92

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Solution

The fourth proportional to 292,889.12, 439,372.97 and 103,304.92 is: 154,971.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,889.12 : 439,372.97 = 103,304.92 : x
  2. Step 2: Convert to fraction form
    292,889.12/439,372.97 = 103,304.92/x
  3. Step 3: Cross multiply
    292,889.12x = 439,372.97 × 103,304.92
  4. Step 4: Simplify right side
    292,889.12x = 45,389,389,516.01
  5. Step 5: Solve for x
    x = 45,389,389,516.01/292,889.12
  6. Step 6: Final answer
    x = 154,971.24

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1.5x scale

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.