Home / 527,009.24-727,245.20-309,187.64

Finding the Fourth Proportional to 527,009.24, 727,245.20 and 309,187.64

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Solution

The fourth proportional to 527,009.24, 727,245.20 and 309,187.64 is: 426,662.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,009.24 : 727,245.20 = 309,187.64 : x
  2. Step 2: Convert to fraction form
    527,009.24/727,245.20 = 309,187.64/x
  3. Step 3: Cross multiply
    527,009.24x = 727,245.20 × 309,187.64
  4. Step 4: Simplify right side
    527,009.24x = 224,855,227,089.33
  5. Step 5: Solve for x
    x = 224,855,227,089.33/527,009.24
  6. Step 6: Final answer
    x = 426,662.78

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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.