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Finding the Fourth Proportional to 6,348,662.55, 8,763,829.60 and 4,286,468.49

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Solution

The fourth proportional to 6,348,662.55, 8,763,829.60 and 4,286,468.49 is: 5,917,132.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,348,662.55 : 8,763,829.60 = 4,286,468.49 : x
  2. Step 2: Convert to fraction form
    6,348,662.55/8,763,829.60 = 4,286,468.49/x
  3. Step 3: Cross multiply
    6,348,662.55x = 8,763,829.60 × 4,286,468.49
  4. Step 4: Simplify right side
    6,348,662.55x = 37,565,879,433,289.86
  5. Step 5: Solve for x
    x = 37,565,879,433,289.86/6,348,662.55
  6. Step 6: Final answer
    x = 5,917,132.80

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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.