Home / 330,992.32-456,779.62-187,758.40

Finding the Fourth Proportional to 330,992.32, 456,779.62 and 187,758.40

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Solution

The fourth proportional to 330,992.32, 456,779.62 and 187,758.40 is: 259,112.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,992.32 : 456,779.62 = 187,758.40 : x
  2. Step 2: Convert to fraction form
    330,992.32/456,779.62 = 187,758.40/x
  3. Step 3: Cross multiply
    330,992.32x = 456,779.62 × 187,758.40
  4. Step 4: Simplify right side
    330,992.32x = 85,764,210,603.81
  5. Step 5: Solve for x
    x = 85,764,210,603.81/330,992.32
  6. Step 6: Final answer
    x = 259,112.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.