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Finding the Fourth Proportional to 353,119.60, 529,679.40 and 346,898.80

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Solution

The fourth proportional to 353,119.60, 529,679.40 and 346,898.80 is: 520,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,119.60 : 529,679.40 = 346,898.80 : x
  2. Step 2: Convert to fraction form
    353,119.60/529,679.40 = 346,898.80/x
  3. Step 3: Cross multiply
    353,119.60x = 529,679.40 × 346,898.80
  4. Step 4: Simplify right side
    353,119.60x = 183,745,148,244.72
  5. Step 5: Solve for x
    x = 183,745,148,244.72/353,119.60
  6. Step 6: Final answer
    x = 520,348.20

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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.