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Finding the Fourth Proportional to 474,683.85, 655,038.36 and 259,782.39

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Solution

The fourth proportional to 474,683.85, 655,038.36 and 259,782.39 is: 358,485.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,683.85 : 655,038.36 = 259,782.39 : x
  2. Step 2: Convert to fraction form
    474,683.85/655,038.36 = 259,782.39/x
  3. Step 3: Cross multiply
    474,683.85x = 655,038.36 × 259,782.39
  4. Step 4: Simplify right side
    474,683.85x = 170,167,430,702.48
  5. Step 5: Solve for x
    x = 170,167,430,702.48/474,683.85
  6. Step 6: Final answer
    x = 358,485.82

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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.