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Finding the Fourth Proportional to 463,766.01, 640,310.04 and 289,602.30

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Solution

The fourth proportional to 463,766.01, 640,310.04 and 289,602.30 is: 399,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,766.01 : 640,310.04 = 289,602.30 : x
  2. Step 2: Convert to fraction form
    463,766.01/640,310.04 = 289,602.30/x
  3. Step 3: Cross multiply
    463,766.01x = 640,310.04 × 289,602.30
  4. Step 4: Simplify right side
    463,766.01x = 185,435,260,297.09
  5. Step 5: Solve for x
    x = 185,435,260,297.09/463,766.01
  6. Step 6: Final answer
    x = 399,846.60

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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.