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Finding the Fourth Proportional to 293,193.20, 439,271.40 and 260,015.60

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Solution

The fourth proportional to 293,193.20, 439,271.40 and 260,015.60 is: 389,563.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,193.20 : 439,271.40 = 260,015.60 : x
  2. Step 2: Convert to fraction form
    293,193.20/439,271.40 = 260,015.60/x
  3. Step 3: Cross multiply
    293,193.20x = 439,271.40 × 260,015.60
  4. Step 4: Simplify right side
    293,193.20x = 114,217,416,633.84
  5. Step 5: Solve for x
    x = 114,217,416,633.84/293,193.20
  6. Step 6: Final answer
    x = 389,563.66

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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.