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Finding the Fourth Proportional to 355,276.10, 532,914.15 and 307,583.30

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Solution

The fourth proportional to 355,276.10, 532,914.15 and 307,583.30 is: 461,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,276.10 : 532,914.15 = 307,583.30 : x
  2. Step 2: Convert to fraction form
    355,276.10/532,914.15 = 307,583.30/x
  3. Step 3: Cross multiply
    355,276.10x = 532,914.15 × 307,583.30
  4. Step 4: Simplify right side
    355,276.10x = 163,915,492,873.70
  5. Step 5: Solve for x
    x = 163,915,492,873.70/355,276.10
  6. Step 6: Final answer
    x = 461,374.95

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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.