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Finding the Fourth Proportional to 293,231.20, 439,328.40 and 260,053.60

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Solution

The fourth proportional to 293,231.20, 439,328.40 and 260,053.60 is: 389,620.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,231.20 : 439,328.40 = 260,053.60 : x
  2. Step 2: Convert to fraction form
    293,231.20/439,328.40 = 260,053.60/x
  3. Step 3: Cross multiply
    293,231.20x = 439,328.40 × 260,053.60
  4. Step 4: Simplify right side
    293,231.20x = 114,248,932,002.24
  5. Step 5: Solve for x
    x = 114,248,932,002.24/293,231.20
  6. Step 6: Final answer
    x = 389,620.65

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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.