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Finding the Fourth Proportional to 649,207.80, 973,811.70 and 350,272.24

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Solution

The fourth proportional to 649,207.80, 973,811.70 and 350,272.24 is: 525,408.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,207.80 : 973,811.70 = 350,272.24 : x
  2. Step 2: Convert to fraction form
    649,207.80/973,811.70 = 350,272.24/x
  3. Step 3: Cross multiply
    649,207.80x = 973,811.70 × 350,272.24
  4. Step 4: Simplify right side
    649,207.80x = 341,099,205,497.21
  5. Step 5: Solve for x
    x = 341,099,205,497.21/649,207.80
  6. Step 6: Final answer
    x = 525,408.36

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Double scale
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Similar ratio
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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.