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Finding the Fourth Proportional to 347,302.60, 521,126.70 and 197,657.80

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Solution

The fourth proportional to 347,302.60, 521,126.70 and 197,657.80 is: 296,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,302.60 : 521,126.70 = 197,657.80 : x
  2. Step 2: Convert to fraction form
    347,302.60/521,126.70 = 197,657.80/x
  3. Step 3: Cross multiply
    347,302.60x = 521,126.70 × 197,657.80
  4. Step 4: Simplify right side
    347,302.60x = 103,004,757,043.26
  5. Step 5: Solve for x
    x = 103,004,757,043.26/347,302.60
  6. Step 6: Final answer
    x = 296,585.04

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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.