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Finding the Fourth Proportional to 647,938.63, 894,333.16 and 376,094.10

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Solution

The fourth proportional to 647,938.63, 894,333.16 and 376,094.10 is: 519,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,938.63 : 894,333.16 = 376,094.10 : x
  2. Step 2: Convert to fraction form
    647,938.63/894,333.16 = 376,094.10/x
  3. Step 3: Cross multiply
    647,938.63x = 894,333.16 × 376,094.10
  4. Step 4: Simplify right side
    647,938.63x = 336,353,424,910.36
  5. Step 5: Solve for x
    x = 336,353,424,910.36/647,938.63
  6. Step 6: Final answer
    x = 519,113.09

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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.