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Finding the Fourth Proportional to 655,054.32, 903,992.63 and 368,584.59

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Solution

The fourth proportional to 655,054.32, 903,992.63 and 368,584.59 is: 508,656.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,054.32 : 903,992.63 = 368,584.59 : x
  2. Step 2: Convert to fraction form
    655,054.32/903,992.63 = 368,584.59/x
  3. Step 3: Cross multiply
    655,054.32x = 903,992.63 × 368,584.59
  4. Step 4: Simplify right side
    655,054.32x = 333,197,751,048.65
  5. Step 5: Solve for x
    x = 333,197,751,048.65/655,054.32
  6. Step 6: Final answer
    x = 508,656.67

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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.