Home / 539,483,385.60-809,225,078.40-403,434,489.60

Finding the Fourth Proportional to 539,483,385.60, 809,225,078.40 and 403,434,489.60

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Solution

The fourth proportional to 539,483,385.60, 809,225,078.40 and 403,434,489.60 is: 605,151,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,483,385.60 : 809,225,078.40 = 403,434,489.60 : x
  2. Step 2: Convert to fraction form
    539,483,385.60/809,225,078.40 = 403,434,489.60/x
  3. Step 3: Cross multiply
    539,483,385.60x = 809,225,078.40 × 403,434,489.60
  4. Step 4: Simplify right side
    539,483,385.60x = 326,469,306,475,824,000
  5. Step 5: Solve for x
    x = 326,469,306,475,824,000/539,483,385.60
  6. Step 6: Final answer
    x = 605,151,734.40

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Double scale
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Similar ratio
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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.