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Finding the Fourth Proportional to 544,987.20, 816,703.20 and 401,714.40

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Solution

The fourth proportional to 544,987.20, 816,703.20 and 401,714.40 is: 601,998.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,987.20 : 816,703.20 = 401,714.40 : x
  2. Step 2: Convert to fraction form
    544,987.20/816,703.20 = 401,714.40/x
  3. Step 3: Cross multiply
    544,987.20x = 816,703.20 × 401,714.40
  4. Step 4: Simplify right side
    544,987.20x = 328,081,435,966.08
  5. Step 5: Solve for x
    x = 328,081,435,966.08/544,987.20
  6. Step 6: Final answer
    x = 601,998.42

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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.