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Finding the Fourth Proportional to 955,505.60, 1,433,479.80 and 324,419.40

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Solution

The fourth proportional to 955,505.60, 1,433,479.80 and 324,419.40 is: 486,704.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,505.60 : 1,433,479.80 = 324,419.40 : x
  2. Step 2: Convert to fraction form
    955,505.60/1,433,479.80 = 324,419.40/x
  3. Step 3: Cross multiply
    955,505.60x = 1,433,479.80 × 324,419.40
  4. Step 4: Simplify right side
    955,505.60x = 465,048,656,628.12
  5. Step 5: Solve for x
    x = 465,048,656,628.12/955,505.60
  6. Step 6: Final answer
    x = 486,704.27

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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.