Home / 305,856.40-458,784.60-199,568.20

Finding the Fourth Proportional to 305,856.40, 458,784.60 and 199,568.20

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Solution

The fourth proportional to 305,856.40, 458,784.60 and 199,568.20 is: 299,352.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,856.40 : 458,784.60 = 199,568.20 : x
  2. Step 2: Convert to fraction form
    305,856.40/458,784.60 = 199,568.20/x
  3. Step 3: Cross multiply
    305,856.40x = 458,784.60 × 199,568.20
  4. Step 4: Simplify right side
    305,856.40x = 91,558,816,809.72
  5. Step 5: Solve for x
    x = 91,558,816,809.72/305,856.40
  6. Step 6: Final answer
    x = 299,352.30

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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.