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Finding the Fourth Proportional to 1,190,782, 1,643,305.08 and 654,238

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Solution

The fourth proportional to 1,190,782, 1,643,305.08 and 654,238 is: 902,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,782 : 1,643,305.08 = 654,238 : x
  2. Step 2: Convert to fraction form
    1,190,782/1,643,305.08 = 654,238/x
  3. Step 3: Cross multiply
    1,190,782x = 1,643,305.08 × 654,238
  4. Step 4: Simplify right side
    1,190,782x = 1,075,112,628,929.04
  5. Step 5: Solve for x
    x = 1,075,112,628,929.04/1,190,782
  6. Step 6: Final answer
    x = 902,862.68

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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.