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Finding the Fourth Proportional to 1,364,865.93, 2,045,638.58 and 965,621.79

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Solution

The fourth proportional to 1,364,865.93, 2,045,638.58 and 965,621.79 is: 1,447,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364,865.93 : 2,045,638.58 = 965,621.79 : x
  2. Step 2: Convert to fraction form
    1,364,865.93/2,045,638.58 = 965,621.79/x
  3. Step 3: Cross multiply
    1,364,865.93x = 2,045,638.58 × 965,621.79
  4. Step 4: Simplify right side
    1,364,865.93x = 1,975,313,182,484.55
  5. Step 5: Solve for x
    x = 1,975,313,182,484.55/1,364,865.93
  6. Step 6: Final answer
    x = 1,447,258.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.