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Finding the Fourth Proportional to 616,886.20, 925,329.30 and 476,745.40

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Solution

The fourth proportional to 616,886.20, 925,329.30 and 476,745.40 is: 715,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,886.20 : 925,329.30 = 476,745.40 : x
  2. Step 2: Convert to fraction form
    616,886.20/925,329.30 = 476,745.40/x
  3. Step 3: Cross multiply
    616,886.20x = 925,329.30 × 476,745.40
  4. Step 4: Simplify right side
    616,886.20x = 441,146,487,260.22
  5. Step 5: Solve for x
    x = 441,146,487,260.22/616,886.20
  6. Step 6: Final answer
    x = 715,118.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.