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Finding the Fourth Proportional to 525,679.93, 788,585.46 and 205,790.46

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Solution

The fourth proportional to 525,679.93, 788,585.46 and 205,790.46 is: 308,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,679.93 : 788,585.46 = 205,790.46 : x
  2. Step 2: Convert to fraction form
    525,679.93/788,585.46 = 205,790.46/x
  3. Step 3: Cross multiply
    525,679.93x = 788,585.46 × 205,790.46
  4. Step 4: Simplify right side
    525,679.93x = 162,283,364,562.71
  5. Step 5: Solve for x
    x = 162,283,364,562.71/525,679.93
  6. Step 6: Final answer
    x = 308,711.36

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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.