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Finding the Fourth Proportional to 622,886.10, 934,329.15 and 616,981.20

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Solution

The fourth proportional to 622,886.10, 934,329.15 and 616,981.20 is: 925,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,886.10 : 934,329.15 = 616,981.20 : x
  2. Step 2: Convert to fraction form
    622,886.10/934,329.15 = 616,981.20/x
  3. Step 3: Cross multiply
    622,886.10x = 934,329.15 × 616,981.20
  4. Step 4: Simplify right side
    622,886.10x = 576,463,520,161.98
  5. Step 5: Solve for x
    x = 576,463,520,161.98/622,886.10
  6. Step 6: Final answer
    x = 925,471.80

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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.