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Finding the Fourth Proportional to 648,838.48, 888,893.82 and 624,579.79

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Solution

The fourth proportional to 648,838.48, 888,893.82 and 624,579.79 is: 855,659.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,838.48 : 888,893.82 = 624,579.79 : x
  2. Step 2: Convert to fraction form
    648,838.48/888,893.82 = 624,579.79/x
  3. Step 3: Cross multiply
    648,838.48x = 888,893.82 × 624,579.79
  4. Step 4: Simplify right side
    648,838.48x = 555,185,115,427.90
  5. Step 5: Solve for x
    x = 555,185,115,427.90/648,838.48
  6. Step 6: Final answer
    x = 855,659.97

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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.