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Finding the Fourth Proportional to 302,618.60, 453,271.80 and 196,330.40

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Solution

The fourth proportional to 302,618.60, 453,271.80 and 196,330.40 is: 294,069.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,618.60 : 453,271.80 = 196,330.40 : x
  2. Step 2: Convert to fraction form
    302,618.60/453,271.80 = 196,330.40/x
  3. Step 3: Cross multiply
    302,618.60x = 453,271.80 × 196,330.40
  4. Step 4: Simplify right side
    302,618.60x = 88,991,033,802.72
  5. Step 5: Solve for x
    x = 88,991,033,802.72/302,618.60
  6. Step 6: Final answer
    x = 294,069.94

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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.