Home / 1,217,806.29-1,680,577.17-659,000.76

Finding the Fourth Proportional to 1,217,806.29, 1,680,577.17 and 659,000.76

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Solution

The fourth proportional to 1,217,806.29, 1,680,577.17 and 659,000.76 is: 909,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,806.29 : 1,680,577.17 = 659,000.76 : x
  2. Step 2: Convert to fraction form
    1,217,806.29/1,680,577.17 = 659,000.76/x
  3. Step 3: Cross multiply
    1,217,806.29x = 1,680,577.17 × 659,000.76
  4. Step 4: Simplify right side
    1,217,806.29x = 1,107,501,632,268.65
  5. Step 5: Solve for x
    x = 1,107,501,632,268.65/1,217,806.29
  6. Step 6: Final answer
    x = 909,423.48

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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.