Home / 657,973.20-985,647.60-342,607.80

Finding the Fourth Proportional to 657,973.20, 985,647.60 and 342,607.80

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Solution

The fourth proportional to 657,973.20, 985,647.60 and 342,607.80 is: 513,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,973.20 : 985,647.60 = 342,607.80 : x
  2. Step 2: Convert to fraction form
    657,973.20/985,647.60 = 342,607.80/x
  3. Step 3: Cross multiply
    657,973.20x = 985,647.60 × 342,607.80
  4. Step 4: Simplify right side
    657,973.20x = 337,690,555,811.28
  5. Step 5: Solve for x
    x = 337,690,555,811.28/657,973.20
  6. Step 6: Final answer
    x = 513,228.44

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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.