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Finding the Fourth Proportional to 369,074.40, 553,611.60 and 302,589.60

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Solution

The fourth proportional to 369,074.40, 553,611.60 and 302,589.60 is: 453,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,074.40 : 553,611.60 = 302,589.60 : x
  2. Step 2: Convert to fraction form
    369,074.40/553,611.60 = 302,589.60/x
  3. Step 3: Cross multiply
    369,074.40x = 553,611.60 × 302,589.60
  4. Step 4: Simplify right side
    369,074.40x = 167,517,112,599.36
  5. Step 5: Solve for x
    x = 167,517,112,599.36/369,074.40
  6. Step 6: Final answer
    x = 453,884.40

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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.