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Finding the Fourth Proportional to 654,593.69, 903,351.54 and 382,684.79

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Solution

The fourth proportional to 654,593.69, 903,351.54 and 382,684.79 is: 528,112.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,593.69 : 903,351.54 = 382,684.79 : x
  2. Step 2: Convert to fraction form
    654,593.69/903,351.54 = 382,684.79/x
  3. Step 3: Cross multiply
    654,593.69x = 903,351.54 × 382,684.79
  4. Step 4: Simplify right side
    654,593.69x = 345,698,889,864.32
  5. Step 5: Solve for x
    x = 345,698,889,864.32/654,593.69
  6. Step 6: Final answer
    x = 528,112.17

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1.5x scale

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.