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Finding the Fourth Proportional to 575,720.19, 863,153.73 and 275,915.25

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Solution

The fourth proportional to 575,720.19, 863,153.73 and 275,915.25 is: 413,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,720.19 : 863,153.73 = 275,915.25 : x
  2. Step 2: Convert to fraction form
    575,720.19/863,153.73 = 275,915.25/x
  3. Step 3: Cross multiply
    575,720.19x = 863,153.73 × 275,915.25
  4. Step 4: Simplify right side
    575,720.19x = 238,157,277,201.38
  5. Step 5: Solve for x
    x = 238,157,277,201.38/575,720.19
  6. Step 6: Final answer
    x = 413,668.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.