Home / 1,668,137.67-2,502,206.78-405,965.30

Finding the Fourth Proportional to 1,668,137.67, 2,502,206.78 and 405,965.30

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Solution

The fourth proportional to 1,668,137.67, 2,502,206.78 and 405,965.30 is: 608,948.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,137.67 : 2,502,206.78 = 405,965.30 : x
  2. Step 2: Convert to fraction form
    1,668,137.67/2,502,206.78 = 405,965.30/x
  3. Step 3: Cross multiply
    1,668,137.67x = 2,502,206.78 × 405,965.30
  4. Step 4: Simplify right side
    1,668,137.67x = 1,015,809,111,563.87
  5. Step 5: Solve for x
    x = 1,015,809,111,563.87/1,668,137.67
  6. Step 6: Final answer
    x = 608,948.01

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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.