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Finding the Fourth Proportional to 682,644.96, 942,043.44 and 376,724.16

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Solution

The fourth proportional to 682,644.96, 942,043.44 and 376,724.16 is: 519,875.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,644.96 : 942,043.44 = 376,724.16 : x
  2. Step 2: Convert to fraction form
    682,644.96/942,043.44 = 376,724.16/x
  3. Step 3: Cross multiply
    682,644.96x = 942,043.44 × 376,724.16
  4. Step 4: Simplify right side
    682,644.96x = 354,890,523,617.51
  5. Step 5: Solve for x
    x = 354,890,523,617.51/682,644.96
  6. Step 6: Final answer
    x = 519,875.70

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Similar ratio
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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.