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Finding the Fourth Proportional to 707,424.14, 976,251.22 and 385,136.48

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Solution

The fourth proportional to 707,424.14, 976,251.22 and 385,136.48 is: 531,491.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,424.14 : 976,251.22 = 385,136.48 : x
  2. Step 2: Convert to fraction form
    707,424.14/976,251.22 = 385,136.48/x
  3. Step 3: Cross multiply
    707,424.14x = 976,251.22 × 385,136.48
  4. Step 4: Simplify right side
    707,424.14x = 375,989,958,466.51
  5. Step 5: Solve for x
    x = 375,989,958,466.51/707,424.14
  6. Step 6: Final answer
    x = 531,491.56

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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.