Home / 1,217,510.86-1,680,214.56-673,637.84

Finding the Fourth Proportional to 1,217,510.86, 1,680,214.56 and 673,637.84

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Solution

The fourth proportional to 1,217,510.86, 1,680,214.56 and 673,637.84 is: 929,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,510.86 : 1,680,214.56 = 673,637.84 : x
  2. Step 2: Convert to fraction form
    1,217,510.86/1,680,214.56 = 673,637.84/x
  3. Step 3: Cross multiply
    1,217,510.86x = 1,680,214.56 × 673,637.84
  4. Step 4: Simplify right side
    1,217,510.86x = 1,131,856,106,934.95
  5. Step 5: Solve for x
    x = 1,131,856,106,934.95/1,217,510.86
  6. Step 6: Final answer
    x = 929,647.65

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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.