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Finding the Fourth Proportional to 455,682.40, 624,274.52 and 438,644.80

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Solution

The fourth proportional to 455,682.40, 624,274.52 and 438,644.80 is: 600,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,682.40 : 624,274.52 = 438,644.80 : x
  2. Step 2: Convert to fraction form
    455,682.40/624,274.52 = 438,644.80/x
  3. Step 3: Cross multiply
    455,682.40x = 624,274.52 × 438,644.80
  4. Step 4: Simplify right side
    455,682.40x = 273,834,771,970.50
  5. Step 5: Solve for x
    x = 273,834,771,970.50/455,682.40
  6. Step 6: Final answer
    x = 600,933.40

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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.