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Finding the Fourth Proportional to 483,877.90, 666,766.71 and 374,316.69

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Solution

The fourth proportional to 483,877.90, 666,766.71 and 374,316.69 is: 515,795.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,877.90 : 666,766.71 = 374,316.69 : x
  2. Step 2: Convert to fraction form
    483,877.90/666,766.71 = 374,316.69/x
  3. Step 3: Cross multiply
    483,877.90x = 666,766.71 × 374,316.69
  4. Step 4: Simplify right side
    483,877.90x = 249,581,907,889.39
  5. Step 5: Solve for x
    x = 249,581,907,889.39/483,877.90
  6. Step 6: Final answer
    x = 515,795.22

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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.