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Finding the Fourth Proportional to 1,609,714.80, 2,419,237.80 and 1,404,428.40

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Solution

The fourth proportional to 1,609,714.80, 2,419,237.80 and 1,404,428.40 is: 2,110,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,714.80 : 2,419,237.80 = 1,404,428.40 : x
  2. Step 2: Convert to fraction form
    1,609,714.80/2,419,237.80 = 1,404,428.40/x
  3. Step 3: Cross multiply
    1,609,714.80x = 2,419,237.80 × 1,404,428.40
  4. Step 4: Simplify right side
    1,609,714.80x = 3,397,646,272,673.52
  5. Step 5: Solve for x
    x = 3,397,646,272,673.52/1,609,714.80
  6. Step 6: Final answer
    x = 2,110,713.20

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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.