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Finding the Fourth Proportional to 356,315.20, 533,858.40 and 168,923.20

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Solution

The fourth proportional to 356,315.20, 533,858.40 and 168,923.20 is: 253,093.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,315.20 : 533,858.40 = 168,923.20 : x
  2. Step 2: Convert to fraction form
    356,315.20/533,858.40 = 168,923.20/x
  3. Step 3: Cross multiply
    356,315.20x = 533,858.40 × 168,923.20
  4. Step 4: Simplify right side
    356,315.20x = 90,181,069,274.88
  5. Step 5: Solve for x
    x = 90,181,069,274.88/356,315.20
  6. Step 6: Final answer
    x = 253,093.52

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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.