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Finding the Fourth Proportional to 348,071.20, 522,106.80 and 237,479.20

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Solution

The fourth proportional to 348,071.20, 522,106.80 and 237,479.20 is: 356,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,071.20 : 522,106.80 = 237,479.20 : x
  2. Step 2: Convert to fraction form
    348,071.20/522,106.80 = 237,479.20/x
  3. Step 3: Cross multiply
    348,071.20x = 522,106.80 × 237,479.20
  4. Step 4: Simplify right side
    348,071.20x = 123,989,505,178.56
  5. Step 5: Solve for x
    x = 123,989,505,178.56/348,071.20
  6. Step 6: Final answer
    x = 356,218.80

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1.5x scale

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.