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Finding the Fourth Proportional to 293,074.60, 439,611.90 and 265,518.40

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Solution

The fourth proportional to 293,074.60, 439,611.90 and 265,518.40 is: 398,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,074.60 : 439,611.90 = 265,518.40 : x
  2. Step 2: Convert to fraction form
    293,074.60/439,611.90 = 265,518.40/x
  3. Step 3: Cross multiply
    293,074.60x = 439,611.90 × 265,518.40
  4. Step 4: Simplify right side
    293,074.60x = 116,725,048,308.96
  5. Step 5: Solve for x
    x = 116,725,048,308.96/293,074.60
  6. Step 6: Final answer
    x = 398,277.60

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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.