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Finding the Fourth Proportional to 917,850.16, 1,262,141.22 and 796,779.64

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Solution

The fourth proportional to 917,850.16, 1,262,141.22 and 796,779.64 is: 1,095,656.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,850.16 : 1,262,141.22 = 796,779.64 : x
  2. Step 2: Convert to fraction form
    917,850.16/1,262,141.22 = 796,779.64/x
  3. Step 3: Cross multiply
    917,850.16x = 1,262,141.22 × 796,779.64
  4. Step 4: Simplify right side
    917,850.16x = 1,005,648,426,900.76
  5. Step 5: Solve for x
    x = 1,005,648,426,900.76/917,850.16
  6. Step 6: Final answer
    x = 1,095,656.43

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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.