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Finding the Fourth Proportional to 644,709.54, 967,071.60 and 195,426.84

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Solution

The fourth proportional to 644,709.54, 967,071.60 and 195,426.84 is: 293,142.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,709.54 : 967,071.60 = 195,426.84 : x
  2. Step 2: Convert to fraction form
    644,709.54/967,071.60 = 195,426.84/x
  3. Step 3: Cross multiply
    644,709.54x = 967,071.60 × 195,426.84
  4. Step 4: Simplify right side
    644,709.54x = 188,991,746,841.74
  5. Step 5: Solve for x
    x = 188,991,746,841.74/644,709.54
  6. Step 6: Final answer
    x = 293,142.47

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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.