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Finding the Fourth Proportional to 648,855.48, 888,917.10 and 624,596.82

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Solution

The fourth proportional to 648,855.48, 888,917.10 and 624,596.82 is: 855,683.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,855.48 : 888,917.10 = 624,596.82 : x
  2. Step 2: Convert to fraction form
    648,855.48/888,917.10 = 624,596.82/x
  3. Step 3: Cross multiply
    648,855.48x = 888,917.10 × 624,596.82
  4. Step 4: Simplify right side
    648,855.48x = 555,214,793,903.62
  5. Step 5: Solve for x
    x = 555,214,793,903.62/648,855.48
  6. Step 6: Final answer
    x = 855,683.29

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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.