Home / 286,835.56-430,449.36-99,847.06

Finding the Fourth Proportional to 286,835.56, 430,449.36 and 99,847.06

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Solution

The fourth proportional to 286,835.56, 430,449.36 and 99,847.06 is: 149,838.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,835.56 : 430,449.36 = 99,847.06 : x
  2. Step 2: Convert to fraction form
    286,835.56/430,449.36 = 99,847.06/x
  3. Step 3: Cross multiply
    286,835.56x = 430,449.36 × 99,847.06
  4. Step 4: Simplify right side
    286,835.56x = 42,979,103,074.88
  5. Step 5: Solve for x
    x = 42,979,103,074.88/286,835.56
  6. Step 6: Final answer
    x = 149,838.82

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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.