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Finding the Fourth Proportional to 763,783.26, 1,054,054.26 and 424,251.51

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Solution

The fourth proportional to 763,783.26, 1,054,054.26 and 424,251.51 is: 585,485.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,783.26 : 1,054,054.26 = 424,251.51 : x
  2. Step 2: Convert to fraction form
    763,783.26/1,054,054.26 = 424,251.51/x
  3. Step 3: Cross multiply
    763,783.26x = 1,054,054.26 × 424,251.51
  4. Step 4: Simplify right side
    763,783.26x = 447,184,111,426.93
  5. Step 5: Solve for x
    x = 447,184,111,426.93/763,783.26
  6. Step 6: Final answer
    x = 585,485.61

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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.