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Finding the Fourth Proportional to 348,594.47, 481,142.40 and 212,740.76

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Solution

The fourth proportional to 348,594.47, 481,142.40 and 212,740.76 is: 293,632.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,594.47 : 481,142.40 = 212,740.76 : x
  2. Step 2: Convert to fraction form
    348,594.47/481,142.40 = 212,740.76/x
  3. Step 3: Cross multiply
    348,594.47x = 481,142.40 × 212,740.76
  4. Step 4: Simplify right side
    348,594.47x = 102,358,600,249.30
  5. Step 5: Solve for x
    x = 102,358,600,249.30/348,594.47
  6. Step 6: Final answer
    x = 293,632.31

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1.5x scale

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.