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Finding the Fourth Proportional to 260,528.04, 390,820.56 and 82,993.32

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Solution

The fourth proportional to 260,528.04, 390,820.56 and 82,993.32 is: 124,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,528.04 : 390,820.56 = 82,993.32 : x
  2. Step 2: Convert to fraction form
    260,528.04/390,820.56 = 82,993.32/x
  3. Step 3: Cross multiply
    260,528.04x = 390,820.56 × 82,993.32
  4. Step 4: Simplify right side
    260,528.04x = 32,435,495,798.66
  5. Step 5: Solve for x
    x = 32,435,495,798.66/260,528.04
  6. Step 6: Final answer
    x = 124,499.06

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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.