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Finding the Fourth Proportional to 348,293.73, 480,697.88 and 212,406.50

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Solution

The fourth proportional to 348,293.73, 480,697.88 and 212,406.50 is: 293,153.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,293.73 : 480,697.88 = 212,406.50 : x
  2. Step 2: Convert to fraction form
    348,293.73/480,697.88 = 212,406.50/x
  3. Step 3: Cross multiply
    348,293.73x = 480,697.88 × 212,406.50
  4. Step 4: Simplify right side
    348,293.73x = 102,103,355,980.98
  5. Step 5: Solve for x
    x = 102,103,355,980.98/348,293.73
  6. Step 6: Final answer
    x = 293,153.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.