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Finding the Fourth Proportional to 293,006.40, 439,509.60 and 105,974.16

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Solution

The fourth proportional to 293,006.40, 439,509.60 and 105,974.16 is: 158,961.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,006.40 : 439,509.60 = 105,974.16 : x
  2. Step 2: Convert to fraction form
    293,006.40/439,509.60 = 105,974.16/x
  3. Step 3: Cross multiply
    293,006.40x = 439,509.60 × 105,974.16
  4. Step 4: Simplify right side
    293,006.40x = 46,576,660,671.94
  5. Step 5: Solve for x
    x = 46,576,660,671.94/293,006.40
  6. Step 6: Final answer
    x = 158,961.24

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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.