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Finding the Fourth Proportional to 879,535.26, 1,213,761 and 477,127.26

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Solution

The fourth proportional to 879,535.26, 1,213,761 and 477,127.26 is: 658,436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,535.26 : 1,213,761 = 477,127.26 : x
  2. Step 2: Convert to fraction form
    879,535.26/1,213,761 = 477,127.26/x
  3. Step 3: Cross multiply
    879,535.26x = 1,213,761 × 477,127.26
  4. Step 4: Simplify right side
    879,535.26x = 579,118,460,224.86
  5. Step 5: Solve for x
    x = 579,118,460,224.86/879,535.26
  6. Step 6: Final answer
    x = 658,436.89

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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.