Home / 286,518.78-429,777.69-76,156.73

Finding the Fourth Proportional to 286,518.78, 429,777.69 and 76,156.73

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Solution

The fourth proportional to 286,518.78, 429,777.69 and 76,156.73 is: 114,234.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,518.78 : 429,777.69 = 76,156.73 : x
  2. Step 2: Convert to fraction form
    286,518.78/429,777.69 = 76,156.73/x
  3. Step 3: Cross multiply
    286,518.78x = 429,777.69 × 76,156.73
  4. Step 4: Simplify right side
    286,518.78x = 32,730,461,348.47
  5. Step 5: Solve for x
    x = 32,730,461,348.47/286,518.78
  6. Step 6: Final answer
    x = 114,234.96

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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.