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Finding the Fourth Proportional to 1,719,485.28, 2,372,494.53 and 1,066,698.57

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Solution

The fourth proportional to 1,719,485.28, 2,372,494.53 and 1,066,698.57 is: 1,471,798.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719,485.28 : 2,372,494.53 = 1,066,698.57 : x
  2. Step 2: Convert to fraction form
    1,719,485.28/2,372,494.53 = 1,066,698.57/x
  3. Step 3: Cross multiply
    1,719,485.28x = 2,372,494.53 × 1,066,698.57
  4. Step 4: Simplify right side
    1,719,485.28x = 2,530,736,522,483.82
  5. Step 5: Solve for x
    x = 2,530,736,522,483.82/1,719,485.28
  6. Step 6: Final answer
    x = 1,471,798.89

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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.