Home / 286,776.30-395,730.73-157,723.73

Finding the Fourth Proportional to 286,776.30, 395,730.73 and 157,723.73

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Solution

The fourth proportional to 286,776.30, 395,730.73 and 157,723.73 is: 217,647.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,776.30 : 395,730.73 = 157,723.73 : x
  2. Step 2: Convert to fraction form
    286,776.30/395,730.73 = 157,723.73/x
  3. Step 3: Cross multiply
    286,776.30x = 395,730.73 × 157,723.73
  4. Step 4: Simplify right side
    286,776.30x = 62,416,126,811.22
  5. Step 5: Solve for x
    x = 62,416,126,811.22/286,776.30
  6. Step 6: Final answer
    x = 217,647.44

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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.