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Finding the Fourth Proportional to 1,716,584.78, 2,368,730.51 and 1,018,745.20

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Solution

The fourth proportional to 1,716,584.78, 2,368,730.51 and 1,018,745.20 is: 1,405,775.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716,584.78 : 2,368,730.51 = 1,018,745.20 : x
  2. Step 2: Convert to fraction form
    1,716,584.78/2,368,730.51 = 1,018,745.20/x
  3. Step 3: Cross multiply
    1,716,584.78x = 2,368,730.51 × 1,018,745.20
  4. Step 4: Simplify right side
    1,716,584.78x = 2,413,132,841,708.86
  5. Step 5: Solve for x
    x = 2,413,132,841,708.86/1,716,584.78
  6. Step 6: Final answer
    x = 1,405,775.51

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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.