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Finding the Fourth Proportional to 3,044,978.68, 4,202,136.48 and 1,668,422.56

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Solution

The fourth proportional to 3,044,978.68, 4,202,136.48 and 1,668,422.56 is: 2,302,459.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,044,978.68 : 4,202,136.48 = 1,668,422.56 : x
  2. Step 2: Convert to fraction form
    3,044,978.68/4,202,136.48 = 1,668,422.56/x
  3. Step 3: Cross multiply
    3,044,978.68x = 4,202,136.48 × 1,668,422.56
  4. Step 4: Simplify right side
    3,044,978.68x = 7,010,939,303,430.99
  5. Step 5: Solve for x
    x = 7,010,939,303,430.99/3,044,978.68
  6. Step 6: Final answer
    x = 2,302,459.24

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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.