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Finding the Fourth Proportional to 993,062.56, 1,370,422.56 and 563,425.60

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Solution

The fourth proportional to 993,062.56, 1,370,422.56 and 563,425.60 is: 777,525.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,062.56 : 1,370,422.56 = 563,425.60 : x
  2. Step 2: Convert to fraction form
    993,062.56/1,370,422.56 = 563,425.60/x
  3. Step 3: Cross multiply
    993,062.56x = 1,370,422.56 × 563,425.60
  4. Step 4: Simplify right side
    993,062.56x = 772,131,153,121.54
  5. Step 5: Solve for x
    x = 772,131,153,121.54/993,062.56
  6. Step 6: Final answer
    x = 777,525.19

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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.