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Finding the Fourth Proportional to 677,538.40, 935,029.16 and 371,627.67

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Solution

The fourth proportional to 677,538.40, 935,029.16 and 371,627.67 is: 512,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,538.40 : 935,029.16 = 371,627.67 : x
  2. Step 2: Convert to fraction form
    677,538.40/935,029.16 = 371,627.67/x
  3. Step 3: Cross multiply
    677,538.40x = 935,029.16 × 371,627.67
  4. Step 4: Simplify right side
    677,538.40x = 347,482,709,761.08
  5. Step 5: Solve for x
    x = 347,482,709,761.08/677,538.40
  6. Step 6: Final answer
    x = 512,860.54

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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.