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Finding the Fourth Proportional to 544,643.16, 816,968.40 and 189,656.01

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Solution

The fourth proportional to 544,643.16, 816,968.40 and 189,656.01 is: 284,485.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,643.16 : 816,968.40 = 189,656.01 : x
  2. Step 2: Convert to fraction form
    544,643.16/816,968.40 = 189,656.01/x
  3. Step 3: Cross multiply
    544,643.16x = 816,968.40 × 189,656.01
  4. Step 4: Simplify right side
    544,643.16x = 154,942,967,040.08
  5. Step 5: Solve for x
    x = 154,942,967,040.08/544,643.16
  6. Step 6: Final answer
    x = 284,485.29

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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.