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Finding the Fourth Proportional to 867,512.60, 1,300,232.10 and 446,571.80

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Solution

The fourth proportional to 867,512.60, 1,300,232.10 and 446,571.80 is: 669,323.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,512.60 : 1,300,232.10 = 446,571.80 : x
  2. Step 2: Convert to fraction form
    867,512.60/1,300,232.10 = 446,571.80/x
  3. Step 3: Cross multiply
    867,512.60x = 1,300,232.10 × 446,571.80
  4. Step 4: Simplify right side
    867,512.60x = 580,646,989,314.78
  5. Step 5: Solve for x
    x = 580,646,989,314.78/867,512.60
  6. Step 6: Final answer
    x = 669,323.98

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1.5x scale

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.