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Finding the Fourth Proportional to 437,618.40, 656,427.60 and 349,044.90

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Solution

The fourth proportional to 437,618.40, 656,427.60 and 349,044.90 is: 523,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,618.40 : 656,427.60 = 349,044.90 : x
  2. Step 2: Convert to fraction form
    437,618.40/656,427.60 = 349,044.90/x
  3. Step 3: Cross multiply
    437,618.40x = 656,427.60 × 349,044.90
  4. Step 4: Simplify right side
    437,618.40x = 229,122,705,999.24
  5. Step 5: Solve for x
    x = 229,122,705,999.24/437,618.40
  6. Step 6: Final answer
    x = 523,567.35

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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.