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Finding the Fourth Proportional to 649,917, 896,868.68 and 359,521.00

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Solution

The fourth proportional to 649,917, 896,868.68 and 359,521.00 is: 496,129.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,917 : 896,868.68 = 359,521.00 : x
  2. Step 2: Convert to fraction form
    649,917/896,868.68 = 359,521.00/x
  3. Step 3: Cross multiply
    649,917x = 896,868.68 × 359,521.00
  4. Step 4: Simplify right side
    649,917x = 322,443,120,662.50
  5. Step 5: Solve for x
    x = 322,443,120,662.50/649,917
  6. Step 6: Final answer
    x = 496,129.69

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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.