Home / 1,229,515.79-1,696,740.77-685,686.65

Finding the Fourth Proportional to 1,229,515.79, 1,696,740.77 and 685,686.65

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Solution

The fourth proportional to 1,229,515.79, 1,696,740.77 and 685,686.65 is: 946,252.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,515.79 : 1,696,740.77 = 685,686.65 : x
  2. Step 2: Convert to fraction form
    1,229,515.79/1,696,740.77 = 685,686.65/x
  3. Step 3: Cross multiply
    1,229,515.79x = 1,696,740.77 × 685,686.65
  4. Step 4: Simplify right side
    1,229,515.79x = 1,163,432,494,499.72
  5. Step 5: Solve for x
    x = 1,163,432,494,499.72/1,229,515.79
  6. Step 6: Final answer
    x = 946,252.58

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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.