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Finding the Fourth Proportional to 511,773.93, 768,326.11 and 393,528.31

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Solution

The fourth proportional to 511,773.93, 768,326.11 and 393,528.31 is: 590,803.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,773.93 : 768,326.11 = 393,528.31 : x
  2. Step 2: Convert to fraction form
    511,773.93/768,326.11 = 393,528.31/x
  3. Step 3: Cross multiply
    511,773.93x = 768,326.11 × 393,528.31
  4. Step 4: Simplify right side
    511,773.93x = 302,358,075,597.17
  5. Step 5: Solve for x
    x = 302,358,075,597.17/511,773.93
  6. Step 6: Final answer
    x = 590,803.98

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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.