Home / 1,208,929.92-1,668,326.76-665,100.96

Finding the Fourth Proportional to 1,208,929.92, 1,668,326.76 and 665,100.96

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Solution

The fourth proportional to 1,208,929.92, 1,668,326.76 and 665,100.96 is: 917,841.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,929.92 : 1,668,326.76 = 665,100.96 : x
  2. Step 2: Convert to fraction form
    1,208,929.92/1,668,326.76 = 665,100.96/x
  3. Step 3: Cross multiply
    1,208,929.92x = 1,668,326.76 × 665,100.96
  4. Step 4: Simplify right side
    1,208,929.92x = 1,109,605,729,669.69
  5. Step 5: Solve for x
    x = 1,109,605,729,669.69/1,208,929.92
  6. Step 6: Final answer
    x = 917,841.23

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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.