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Finding the Fourth Proportional to 677,555.63, 935,028.11 and 371,634.50

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Solution

The fourth proportional to 677,555.63, 935,028.11 and 371,634.50 is: 512,856.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,555.63 : 935,028.11 = 371,634.50 : x
  2. Step 2: Convert to fraction form
    677,555.63/935,028.11 = 371,634.50/x
  3. Step 3: Cross multiply
    677,555.63x = 935,028.11 × 371,634.50
  4. Step 4: Simplify right side
    677,555.63x = 347,488,704,625.19
  5. Step 5: Solve for x
    x = 347,488,704,625.19/677,555.63
  6. Step 6: Final answer
    x = 512,856.35

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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.