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Finding the Fourth Proportional to 2,632,534, 3,948,801 and 637,990

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Solution

The fourth proportional to 2,632,534, 3,948,801 and 637,990 is: 956,985

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,632,534 : 3,948,801 = 637,990 : x
  2. Step 2: Convert to fraction form
    2,632,534/3,948,801 = 637,990/x
  3. Step 3: Cross multiply
    2,632,534x = 3,948,801 × 637,990
  4. Step 4: Simplify right side
    2,632,534x = 2,519,295,549,990
  5. Step 5: Solve for x
    x = 2,519,295,549,990/2,632,534
  6. Step 6: Final answer
    x = 956,985

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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.