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Finding the Fourth Proportional to 368,561.53, 508,806.93 and 248,334.85

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Solution

The fourth proportional to 368,561.53, 508,806.93 and 248,334.85 is: 342,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,561.53 : 508,806.93 = 248,334.85 : x
  2. Step 2: Convert to fraction form
    368,561.53/508,806.93 = 248,334.85/x
  3. Step 3: Cross multiply
    368,561.53x = 508,806.93 × 248,334.85
  4. Step 4: Simplify right side
    368,561.53x = 126,354,492,640.51
  5. Step 5: Solve for x
    x = 126,354,492,640.51/368,561.53
  6. Step 6: Final answer
    x = 342,831.47

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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.