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Finding the Fourth Proportional to 1,555,686, 2,333,922.66 and 433,755

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Solution

The fourth proportional to 1,555,686, 2,333,922.66 and 433,755 is: 650,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,686 : 2,333,922.66 = 433,755 : x
  2. Step 2: Convert to fraction form
    1,555,686/2,333,922.66 = 433,755/x
  3. Step 3: Cross multiply
    1,555,686x = 2,333,922.66 × 433,755
  4. Step 4: Simplify right side
    1,555,686x = 1,012,350,623,388.30
  5. Step 5: Solve for x
    x = 1,012,350,623,388.30/1,555,686
  6. Step 6: Final answer
    x = 650,742.26

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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.