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Finding the Fourth Proportional to 548,980.52, 756,991.51 and 357,639.08

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Solution

The fourth proportional to 548,980.52, 756,991.51 and 357,639.08 is: 493,150.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,980.52 : 756,991.51 = 357,639.08 : x
  2. Step 2: Convert to fraction form
    548,980.52/756,991.51 = 357,639.08/x
  3. Step 3: Cross multiply
    548,980.52x = 756,991.51 × 357,639.08
  4. Step 4: Simplify right side
    548,980.52x = 270,729,742,525.16
  5. Step 5: Solve for x
    x = 270,729,742,525.16/548,980.52
  6. Step 6: Final answer
    x = 493,150.00

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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.