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Finding the Fourth Proportional to 945,621.80, 1,279,077.75 and 945,621.80

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Solution

The fourth proportional to 945,621.80, 1,279,077.75 and 945,621.80 is: 1,279,077.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,621.80 : 1,279,077.75 = 945,621.80 : x
  2. Step 2: Convert to fraction form
    945,621.80/1,279,077.75 = 945,621.80/x
  3. Step 3: Cross multiply
    945,621.80x = 1,279,077.75 × 945,621.80
  4. Step 4: Simplify right side
    945,621.80x = 1,209,523,804,294.95
  5. Step 5: Solve for x
    x = 1,209,523,804,294.95/945,621.80
  6. Step 6: Final answer
    x = 1,279,077.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.