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Finding the Fourth Proportional to 487,996.94, 673,429.16 and 273,136.94

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Solution

The fourth proportional to 487,996.94, 673,429.16 and 273,136.94 is: 376,925.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,996.94 : 673,429.16 = 273,136.94 : x
  2. Step 2: Convert to fraction form
    487,996.94/673,429.16 = 273,136.94/x
  3. Step 3: Cross multiply
    487,996.94x = 673,429.16 × 273,136.94
  4. Step 4: Simplify right side
    487,996.94x = 183,938,377,384.87
  5. Step 5: Solve for x
    x = 183,938,377,384.87/487,996.94
  6. Step 6: Final answer
    x = 376,925.27

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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.