Home / 521,708.20-782,562.30-403,464.40

Finding the Fourth Proportional to 521,708.20, 782,562.30 and 403,464.40

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Solution

The fourth proportional to 521,708.20, 782,562.30 and 403,464.40 is: 605,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,708.20 : 782,562.30 = 403,464.40 : x
  2. Step 2: Convert to fraction form
    521,708.20/782,562.30 = 403,464.40/x
  3. Step 3: Cross multiply
    521,708.20x = 782,562.30 × 403,464.40
  4. Step 4: Simplify right side
    521,708.20x = 315,736,028,832.12
  5. Step 5: Solve for x
    x = 315,736,028,832.12/521,708.20
  6. Step 6: Final answer
    x = 605,196.60

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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.