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Finding the Fourth Proportional to 1,008,442, 1,391,649.96 and 555,733

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Solution

The fourth proportional to 1,008,442, 1,391,649.96 and 555,733 is: 766,911.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,442 : 1,391,649.96 = 555,733 : x
  2. Step 2: Convert to fraction form
    1,008,442/1,391,649.96 = 555,733/x
  3. Step 3: Cross multiply
    1,008,442x = 1,391,649.96 × 555,733
  4. Step 4: Simplify right side
    1,008,442x = 773,385,807,220.68
  5. Step 5: Solve for x
    x = 773,385,807,220.68/1,008,442
  6. Step 6: Final answer
    x = 766,911.54

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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.