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Finding the Fourth Proportional to 346,640.20, 519,960.30 and 232,478.80

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Solution

The fourth proportional to 346,640.20, 519,960.30 and 232,478.80 is: 348,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,640.20 : 519,960.30 = 232,478.80 : x
  2. Step 2: Convert to fraction form
    346,640.20/519,960.30 = 232,478.80/x
  3. Step 3: Cross multiply
    346,640.20x = 519,960.30 × 232,478.80
  4. Step 4: Simplify right side
    346,640.20x = 120,879,746,591.64
  5. Step 5: Solve for x
    x = 120,879,746,591.64/346,640.20
  6. Step 6: Final answer
    x = 348,718.20

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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.