Home / 1,208,929.66-1,668,257.03-664,977.63

Finding the Fourth Proportional to 1,208,929.66, 1,668,257.03 and 664,977.63

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Solution

The fourth proportional to 1,208,929.66, 1,668,257.03 and 664,977.63 is: 917,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,929.66 : 1,668,257.03 = 664,977.63 : x
  2. Step 2: Convert to fraction form
    1,208,929.66/1,668,257.03 = 664,977.63/x
  3. Step 3: Cross multiply
    1,208,929.66x = 1,668,257.03 × 664,977.63
  4. Step 4: Simplify right side
    1,208,929.66x = 1,109,353,607,702.68
  5. Step 5: Solve for x
    x = 1,109,353,607,702.68/1,208,929.66
  6. Step 6: Final answer
    x = 917,632.88

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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.