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Finding the Fourth Proportional to 464,445.60, 640,941.57 and 347,952.66

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Solution

The fourth proportional to 464,445.60, 640,941.57 and 347,952.66 is: 480,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,445.60 : 640,941.57 = 347,952.66 : x
  2. Step 2: Convert to fraction form
    464,445.60/640,941.57 = 347,952.66/x
  3. Step 3: Cross multiply
    464,445.60x = 640,941.57 × 347,952.66
  4. Step 4: Simplify right side
    464,445.60x = 223,017,324,186.08
  5. Step 5: Solve for x
    x = 223,017,324,186.08/464,445.60
  6. Step 6: Final answer
    x = 480,179.65

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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.