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Finding the Fourth Proportional to 602,074.74, 903,653.55 and 321,831.54

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Solution

The fourth proportional to 602,074.74, 903,653.55 and 321,831.54 is: 483,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,074.74 : 903,653.55 = 321,831.54 : x
  2. Step 2: Convert to fraction form
    602,074.74/903,653.55 = 321,831.54/x
  3. Step 3: Cross multiply
    602,074.74x = 903,653.55 × 321,831.54
  4. Step 4: Simplify right side
    602,074.74x = 290,824,213,622.97
  5. Step 5: Solve for x
    x = 290,824,213,622.97/602,074.74
  6. Step 6: Final answer
    x = 483,036.73

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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.