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Finding the Fourth Proportional to 1,409,935.52, 1,945,743.90 and 836,977.88

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Solution

The fourth proportional to 1,409,935.52, 1,945,743.90 and 836,977.88 is: 1,155,048.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,935.52 : 1,945,743.90 = 836,977.88 : x
  2. Step 2: Convert to fraction form
    1,409,935.52/1,945,743.90 = 836,977.88/x
  3. Step 3: Cross multiply
    1,409,935.52x = 1,945,743.90 × 836,977.88
  4. Step 4: Simplify right side
    1,409,935.52x = 1,628,544,604,444.93
  5. Step 5: Solve for x
    x = 1,628,544,604,444.93/1,409,935.52
  6. Step 6: Final answer
    x = 1,155,048.99

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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.