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Finding the Fourth Proportional to 570,544.88, 787,376.53 and 315,896.06

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Solution

The fourth proportional to 570,544.88, 787,376.53 and 315,896.06 is: 435,950.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,544.88 : 787,376.53 = 315,896.06 : x
  2. Step 2: Convert to fraction form
    570,544.88/787,376.53 = 315,896.06/x
  3. Step 3: Cross multiply
    570,544.88x = 787,376.53 × 315,896.06
  4. Step 4: Simplify right side
    570,544.88x = 248,729,145,926.78
  5. Step 5: Solve for x
    x = 248,729,145,926.78/570,544.88
  6. Step 6: Final answer
    x = 435,950.19

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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.