Home / 1,386,600.84-1,913,521.82-813,650.56

Finding the Fourth Proportional to 1,386,600.84, 1,913,521.82 and 813,650.56

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Solution

The fourth proportional to 1,386,600.84, 1,913,521.82 and 813,650.56 is: 1,122,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,600.84 : 1,913,521.82 = 813,650.56 : x
  2. Step 2: Convert to fraction form
    1,386,600.84/1,913,521.82 = 813,650.56/x
  3. Step 3: Cross multiply
    1,386,600.84x = 1,913,521.82 × 813,650.56
  4. Step 4: Simplify right side
    1,386,600.84x = 1,556,938,100,415.22
  5. Step 5: Solve for x
    x = 1,556,938,100,415.22/1,386,600.84
  6. Step 6: Final answer
    x = 1,122,845.20

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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.