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Finding the Fourth Proportional to 570,759.44, 787,617.56 and 312,623.03

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Solution

The fourth proportional to 570,759.44, 787,617.56 and 312,623.03 is: 431,403.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,759.44 : 787,617.56 = 312,623.03 : x
  2. Step 2: Convert to fraction form
    570,759.44/787,617.56 = 312,623.03/x
  3. Step 3: Cross multiply
    570,759.44x = 787,617.56 × 312,623.03
  4. Step 4: Simplify right side
    570,759.44x = 246,227,390,839.01
  5. Step 5: Solve for x
    x = 246,227,390,839.01/570,759.44
  6. Step 6: Final answer
    x = 431,403.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.