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Finding the Fourth Proportional to 622,758.10, 934,137.15 and 616,853.20

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Solution

The fourth proportional to 622,758.10, 934,137.15 and 616,853.20 is: 925,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,758.10 : 934,137.15 = 616,853.20 : x
  2. Step 2: Convert to fraction form
    622,758.10/934,137.15 = 616,853.20/x
  3. Step 3: Cross multiply
    622,758.10x = 934,137.15 × 616,853.20
  4. Step 4: Simplify right side
    622,758.10x = 576,225,490,216.38
  5. Step 5: Solve for x
    x = 576,225,490,216.38/622,758.10
  6. Step 6: Final answer
    x = 925,279.80

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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.