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Finding the Fourth Proportional to 1,375,911, 2,063,957.50 and 365,018.76

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Solution

The fourth proportional to 1,375,911, 2,063,957.50 and 365,018.76 is: 547,552.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,911 : 2,063,957.50 = 365,018.76 : x
  2. Step 2: Convert to fraction form
    1,375,911/2,063,957.50 = 365,018.76/x
  3. Step 3: Cross multiply
    1,375,911x = 2,063,957.50 × 365,018.76
  4. Step 4: Simplify right side
    1,375,911x = 753,383,207,342.70
  5. Step 5: Solve for x
    x = 753,383,207,342.70/1,375,911
  6. Step 6: Final answer
    x = 547,552.28

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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.