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Finding the Fourth Proportional to 648,491.69, 888,429.47 and 624,241.11

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Solution

The fourth proportional to 648,491.69, 888,429.47 and 624,241.11 is: 855,206.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,491.69 : 888,429.47 = 624,241.11 : x
  2. Step 2: Convert to fraction form
    648,491.69/888,429.47 = 624,241.11/x
  3. Step 3: Cross multiply
    648,491.69x = 888,429.47 × 624,241.11
  4. Step 4: Simplify right side
    648,491.69x = 554,594,195,388.31
  5. Step 5: Solve for x
    x = 554,594,195,388.31/648,491.69
  6. Step 6: Final answer
    x = 855,206.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.