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Finding the Fourth Proportional to 1,185,556, 1,636,067.36 and 649,012

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Solution

The fourth proportional to 1,185,556, 1,636,067.36 and 649,012 is: 895,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,556 : 1,636,067.36 = 649,012 : x
  2. Step 2: Convert to fraction form
    1,185,556/1,636,067.36 = 649,012/x
  3. Step 3: Cross multiply
    1,185,556x = 1,636,067.36 × 649,012
  4. Step 4: Simplify right side
    1,185,556x = 1,061,827,349,448.32
  5. Step 5: Solve for x
    x = 1,061,827,349,448.32/1,185,556
  6. Step 6: Final answer
    x = 895,636.60

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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.