Home / 527,450.87-727,884.09-285,732.83

Finding the Fourth Proportional to 527,450.87, 727,884.09 and 285,732.83

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Solution

The fourth proportional to 527,450.87, 727,884.09 and 285,732.83 is: 394,312.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,450.87 : 727,884.09 = 285,732.83 : x
  2. Step 2: Convert to fraction form
    527,450.87/727,884.09 = 285,732.83/x
  3. Step 3: Cross multiply
    527,450.87x = 727,884.09 × 285,732.83
  4. Step 4: Simplify right side
    527,450.87x = 207,980,382,767.39
  5. Step 5: Solve for x
    x = 207,980,382,767.39/527,450.87
  6. Step 6: Final answer
    x = 394,312.33

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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.