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Finding the Fourth Proportional to 464,446.60, 640,942.95 and 347,953.66

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Solution

The fourth proportional to 464,446.60, 640,942.95 and 347,953.66 is: 480,181.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,446.60 : 640,942.95 = 347,953.66 : x
  2. Step 2: Convert to fraction form
    464,446.60/640,942.95 = 347,953.66/x
  3. Step 3: Cross multiply
    464,446.60x = 640,942.95 × 347,953.66
  4. Step 4: Simplify right side
    464,446.60x = 223,018,445,303.70
  5. Step 5: Solve for x
    x = 223,018,445,303.70/464,446.60
  6. Step 6: Final answer
    x = 480,181.03

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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.