Home / 657,352.20-984,196.62-420,109.32

Finding the Fourth Proportional to 657,352.20, 984,196.62 and 420,109.32

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Solution

The fourth proportional to 657,352.20, 984,196.62 and 420,109.32 is: 628,993.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,352.20 : 984,196.62 = 420,109.32 : x
  2. Step 2: Convert to fraction form
    657,352.20/984,196.62 = 420,109.32/x
  3. Step 3: Cross multiply
    657,352.20x = 984,196.62 × 420,109.32
  4. Step 4: Simplify right side
    657,352.20x = 413,470,172,774.50
  5. Step 5: Solve for x
    x = 413,470,172,774.50/657,352.20
  6. Step 6: Final answer
    x = 628,993.37

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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.