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Finding the Fourth Proportional to 645,019.88, 967,491.54 and 195,744.47

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Solution

The fourth proportional to 645,019.88, 967,491.54 and 195,744.47 is: 293,605.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,019.88 : 967,491.54 = 195,744.47 : x
  2. Step 2: Convert to fraction form
    645,019.88/967,491.54 = 195,744.47/x
  3. Step 3: Cross multiply
    645,019.88x = 967,491.54 × 195,744.47
  4. Step 4: Simplify right side
    645,019.88x = 189,381,113,889.33
  5. Step 5: Solve for x
    x = 189,381,113,889.33/645,019.88
  6. Step 6: Final answer
    x = 293,605.08

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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.