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Finding the Fourth Proportional to 677,837.64, 935,384.35 and 371,907.12

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Solution

The fourth proportional to 677,837.64, 935,384.35 and 371,907.12 is: 513,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,837.64 : 935,384.35 = 371,907.12 : x
  2. Step 2: Convert to fraction form
    677,837.64/935,384.35 = 371,907.12/x
  3. Step 3: Cross multiply
    677,837.64x = 935,384.35 × 371,907.12
  4. Step 4: Simplify right side
    677,837.64x = 347,876,099,701.57
  5. Step 5: Solve for x
    x = 347,876,099,701.57/677,837.64
  6. Step 6: Final answer
    x = 513,214.49

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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.