Home / 1,683,634.95-2,323,378.49-919,691.55

Finding the Fourth Proportional to 1,683,634.95, 2,323,378.49 and 919,691.55

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Solution

The fourth proportional to 1,683,634.95, 2,323,378.49 and 919,691.55 is: 1,269,153.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,634.95 : 2,323,378.49 = 919,691.55 : x
  2. Step 2: Convert to fraction form
    1,683,634.95/2,323,378.49 = 919,691.55/x
  3. Step 3: Cross multiply
    1,683,634.95x = 2,323,378.49 × 919,691.55
  4. Step 4: Simplify right side
    1,683,634.95x = 2,136,791,560,106.30
  5. Step 5: Solve for x
    x = 2,136,791,560,106.30/1,683,634.95
  6. Step 6: Final answer
    x = 1,269,153.72

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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.