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Finding the Fourth Proportional to 260,840.94, 391,228.74 and 83,333.22

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Solution

The fourth proportional to 260,840.94, 391,228.74 and 83,333.22 is: 124,989.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,840.94 : 391,228.74 = 83,333.22 : x
  2. Step 2: Convert to fraction form
    260,840.94/391,228.74 = 83,333.22/x
  3. Step 3: Cross multiply
    260,840.94x = 391,228.74 × 83,333.22
  4. Step 4: Simplify right side
    260,840.94x = 32,602,350,660.74
  5. Step 5: Solve for x
    x = 32,602,350,660.74/260,840.94
  6. Step 6: Final answer
    x = 124,989.39

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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.