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Finding the Fourth Proportional to 614,675.78, 848,787.90 and 385,626.81

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Solution

The fourth proportional to 614,675.78, 848,787.90 and 385,626.81 is: 532,500.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,675.78 : 848,787.90 = 385,626.81 : x
  2. Step 2: Convert to fraction form
    614,675.78/848,787.90 = 385,626.81/x
  3. Step 3: Cross multiply
    614,675.78x = 848,787.90 × 385,626.81
  4. Step 4: Simplify right side
    614,675.78x = 327,315,370,243.60
  5. Step 5: Solve for x
    x = 327,315,370,243.60/614,675.78
  6. Step 6: Final answer
    x = 532,500.84

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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.