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Finding the Fourth Proportional to 1,351,881.22, 1,865,598.41 and 740,034.36

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Solution

The fourth proportional to 1,351,881.22, 1,865,598.41 and 740,034.36 is: 1,021,248.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,881.22 : 1,865,598.41 = 740,034.36 : x
  2. Step 2: Convert to fraction form
    1,351,881.22/1,865,598.41 = 740,034.36/x
  3. Step 3: Cross multiply
    1,351,881.22x = 1,865,598.41 × 740,034.36
  4. Step 4: Simplify right side
    1,351,881.22x = 1,380,606,925,361.37
  5. Step 5: Solve for x
    x = 1,380,606,925,361.37/1,351,881.22
  6. Step 6: Final answer
    x = 1,021,248.69

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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.