Home / 1,217,610.95-1,680,188.67-824,343.93

Finding the Fourth Proportional to 1,217,610.95, 1,680,188.67 and 824,343.93

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Solution

The fourth proportional to 1,217,610.95, 1,680,188.67 and 824,343.93 is: 1,137,517.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,610.95 : 1,680,188.67 = 824,343.93 : x
  2. Step 2: Convert to fraction form
    1,217,610.95/1,680,188.67 = 824,343.93/x
  3. Step 3: Cross multiply
    1,217,610.95x = 1,680,188.67 × 824,343.93
  4. Step 4: Simplify right side
    1,217,610.95x = 1,385,053,331,369.27
  5. Step 5: Solve for x
    x = 1,385,053,331,369.27/1,217,610.95
  6. Step 6: Final answer
    x = 1,137,517.15

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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.