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Finding the Fourth Proportional to 1,328,001, 1,992,018.78 and 441,537

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Solution

The fourth proportional to 1,328,001, 1,992,018.78 and 441,537 is: 662,311.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,001 : 1,992,018.78 = 441,537 : x
  2. Step 2: Convert to fraction form
    1,328,001/1,992,018.78 = 441,537/x
  3. Step 3: Cross multiply
    1,328,001x = 1,992,018.78 × 441,537
  4. Step 4: Simplify right side
    1,328,001x = 879,549,996,064.86
  5. Step 5: Solve for x
    x = 879,549,996,064.86/1,328,001
  6. Step 6: Final answer
    x = 662,311.25

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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.