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Finding the Fourth Proportional to 1,173,597.44, 1,619,603.04 and 664,288.88

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Solution

The fourth proportional to 1,173,597.44, 1,619,603.04 and 664,288.88 is: 916,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,597.44 : 1,619,603.04 = 664,288.88 : x
  2. Step 2: Convert to fraction form
    1,173,597.44/1,619,603.04 = 664,288.88/x
  3. Step 3: Cross multiply
    1,173,597.44x = 1,619,603.04 × 664,288.88
  4. Step 4: Simplify right side
    1,173,597.44x = 1,075,884,289,486.20
  5. Step 5: Solve for x
    x = 1,075,884,289,486.20/1,173,597.44
  6. Step 6: Final answer
    x = 916,740.49

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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.