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Finding the Fourth Proportional to 511,968.90, 768,828.15 and 335,259.30

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Solution

The fourth proportional to 511,968.90, 768,828.15 and 335,259.30 is: 503,461.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,968.90 : 768,828.15 = 335,259.30 : x
  2. Step 2: Convert to fraction form
    511,968.90/768,828.15 = 335,259.30/x
  3. Step 3: Cross multiply
    511,968.90x = 768,828.15 × 335,259.30
  4. Step 4: Simplify right side
    511,968.90x = 257,756,787,389.30
  5. Step 5: Solve for x
    x = 257,756,787,389.30/511,968.90
  6. Step 6: Final answer
    x = 503,461.81

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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.