Home / 1,208,950.20-1,668,285.30-664,998.20

Finding the Fourth Proportional to 1,208,950.20, 1,668,285.30 and 664,998.20

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Solution

The fourth proportional to 1,208,950.20, 1,668,285.30 and 664,998.20 is: 917,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,950.20 : 1,668,285.30 = 664,998.20 : x
  2. Step 2: Convert to fraction form
    1,208,950.20/1,668,285.30 = 664,998.20/x
  3. Step 3: Cross multiply
    1,208,950.20x = 1,668,285.30 × 664,998.20
  4. Step 4: Simplify right side
    1,208,950.20x = 1,109,406,721,586.46
  5. Step 5: Solve for x
    x = 1,109,406,721,586.46/1,208,950.20
  6. Step 6: Final answer
    x = 917,661.23

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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.