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Finding the Fourth Proportional to 346,687.60, 520,204.20 and 197,042.80

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Solution

The fourth proportional to 346,687.60, 520,204.20 and 197,042.80 is: 295,662.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,687.60 : 520,204.20 = 197,042.80 : x
  2. Step 2: Convert to fraction form
    346,687.60/520,204.20 = 197,042.80/x
  3. Step 3: Cross multiply
    346,687.60x = 520,204.20 × 197,042.80
  4. Step 4: Simplify right side
    346,687.60x = 102,502,492,139.76
  5. Step 5: Solve for x
    x = 102,502,492,139.76/346,687.60
  6. Step 6: Final answer
    x = 295,662.41

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1.5x scale

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.