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Finding the Fourth Proportional to 350,711.40, 526,412.70 and 173,418.60

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Solution

The fourth proportional to 350,711.40, 526,412.70 and 173,418.60 is: 260,298.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,711.40 : 526,412.70 = 173,418.60 : x
  2. Step 2: Convert to fraction form
    350,711.40/526,412.70 = 173,418.60/x
  3. Step 3: Cross multiply
    350,711.40x = 526,412.70 × 173,418.60
  4. Step 4: Simplify right side
    350,711.40x = 91,289,753,456.22
  5. Step 5: Solve for x
    x = 91,289,753,456.22/350,711.40
  6. Step 6: Final answer
    x = 260,298.79

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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.