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Finding the Fourth Proportional to 1,095,780, 1,643,670.60 and 347,826

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Solution

The fourth proportional to 1,095,780, 1,643,670.60 and 347,826 is: 521,739.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,780 : 1,643,670.60 = 347,826 : x
  2. Step 2: Convert to fraction form
    1,095,780/1,643,670.60 = 347,826/x
  3. Step 3: Cross multiply
    1,095,780x = 1,643,670.60 × 347,826
  4. Step 4: Simplify right side
    1,095,780x = 571,711,370,115.60
  5. Step 5: Solve for x
    x = 571,711,370,115.60/1,095,780
  6. Step 6: Final answer
    x = 521,739.19

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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.