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Finding the Fourth Proportional to 336,643.20, 505,240.20 and 334,018.80

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Solution

The fourth proportional to 336,643.20, 505,240.20 and 334,018.80 is: 501,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,643.20 : 505,240.20 = 334,018.80 : x
  2. Step 2: Convert to fraction form
    336,643.20/505,240.20 = 334,018.80/x
  3. Step 3: Cross multiply
    336,643.20x = 505,240.20 × 334,018.80
  4. Step 4: Simplify right side
    336,643.20x = 168,759,725,315.76
  5. Step 5: Solve for x
    x = 168,759,725,315.76/336,643.20
  6. Step 6: Final answer
    x = 501,301.45

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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.