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Finding the Fourth Proportional to 1,834,139.64, 2,751,218.64 and 1,075,447.47

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Solution

The fourth proportional to 1,834,139.64, 2,751,218.64 and 1,075,447.47 is: 1,613,176.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834,139.64 : 2,751,218.64 = 1,075,447.47 : x
  2. Step 2: Convert to fraction form
    1,834,139.64/2,751,218.64 = 1,075,447.47/x
  3. Step 3: Cross multiply
    1,834,139.64x = 2,751,218.64 × 1,075,447.47
  4. Step 4: Simplify right side
    1,834,139.64x = 2,958,791,125,804.84
  5. Step 5: Solve for x
    x = 2,958,791,125,804.84/1,834,139.64
  6. Step 6: Final answer
    x = 1,613,176.59

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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.