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Finding the Fourth Proportional to 511,773.74, 768,325.83 and 393,528.12

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Solution

The fourth proportional to 511,773.74, 768,325.83 and 393,528.12 is: 590,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,773.74 : 768,325.83 = 393,528.12 : x
  2. Step 2: Convert to fraction form
    511,773.74/768,325.83 = 393,528.12/x
  3. Step 3: Cross multiply
    511,773.74x = 768,325.83 × 393,528.12
  4. Step 4: Simplify right side
    511,773.74x = 302,357,819,427.34
  5. Step 5: Solve for x
    x = 302,357,819,427.34/511,773.74
  6. Step 6: Final answer
    x = 590,803.70

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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.