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Finding the Fourth Proportional to 1,173,811.03, 1,619,919.42 and 657,533.85

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Solution

The fourth proportional to 1,173,811.03, 1,619,919.42 and 657,533.85 is: 907,430.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,811.03 : 1,619,919.42 = 657,533.85 : x
  2. Step 2: Convert to fraction form
    1,173,811.03/1,619,919.42 = 657,533.85/x
  3. Step 3: Cross multiply
    1,173,811.03x = 1,619,919.42 × 657,533.85
  4. Step 4: Simplify right side
    1,173,811.03x = 1,065,151,852,922.37
  5. Step 5: Solve for x
    x = 1,065,151,852,922.37/1,173,811.03
  6. Step 6: Final answer
    x = 907,430.43

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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.