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Finding the Fourth Proportional to 483,868.93, 666,754.40 and 374,307.75

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Solution

The fourth proportional to 483,868.93, 666,754.40 and 374,307.75 is: 515,782.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,868.93 : 666,754.40 = 374,307.75 : x
  2. Step 2: Convert to fraction form
    483,868.93/666,754.40 = 374,307.75/x
  3. Step 3: Cross multiply
    483,868.93x = 666,754.40 × 374,307.75
  4. Step 4: Simplify right side
    483,868.93x = 249,571,339,266.60
  5. Step 5: Solve for x
    x = 249,571,339,266.60/483,868.93
  6. Step 6: Final answer
    x = 515,782.94

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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.