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Finding the Fourth Proportional to 346,330.60, 519,668.70 and 196,685.80

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Solution

The fourth proportional to 346,330.60, 519,668.70 and 196,685.80 is: 295,126.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,330.60 : 519,668.70 = 196,685.80 : x
  2. Step 2: Convert to fraction form
    346,330.60/519,668.70 = 196,685.80/x
  3. Step 3: Cross multiply
    346,330.60x = 519,668.70 × 196,685.80
  4. Step 4: Simplify right side
    346,330.60x = 102,211,453,994.46
  5. Step 5: Solve for x
    x = 102,211,453,994.46/346,330.60
  6. Step 6: Final answer
    x = 295,126.84

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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.