Home / 857,877.60-1,286,816.40-659,200.80

Finding the Fourth Proportional to 857,877.60, 1,286,816.40 and 659,200.80

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Solution

The fourth proportional to 857,877.60, 1,286,816.40 and 659,200.80 is: 988,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,877.60 : 1,286,816.40 = 659,200.80 : x
  2. Step 2: Convert to fraction form
    857,877.60/1,286,816.40 = 659,200.80/x
  3. Step 3: Cross multiply
    857,877.60x = 1,286,816.40 × 659,200.80
  4. Step 4: Simplify right side
    857,877.60x = 848,270,400,333.12
  5. Step 5: Solve for x
    x = 848,270,400,333.12/857,877.60
  6. Step 6: Final answer
    x = 988,801.20

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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.