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Finding the Fourth Proportional to 551,497.32, 760,948.23 and 321,950.43

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Solution

The fourth proportional to 551,497.32, 760,948.23 and 321,950.43 is: 444,222.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,497.32 : 760,948.23 = 321,950.43 : x
  2. Step 2: Convert to fraction form
    551,497.32/760,948.23 = 321,950.43/x
  3. Step 3: Cross multiply
    551,497.32x = 760,948.23 × 321,950.43
  4. Step 4: Simplify right side
    551,497.32x = 244,987,611,063.55
  5. Step 5: Solve for x
    x = 244,987,611,063.55/551,497.32
  6. Step 6: Final answer
    x = 444,222.67

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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.