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Finding the Fourth Proportional to 823,393.60, 1,235,205.60 and 350,075.20

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Solution

The fourth proportional to 823,393.60, 1,235,205.60 and 350,075.20 is: 525,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,393.60 : 1,235,205.60 = 350,075.20 : x
  2. Step 2: Convert to fraction form
    823,393.60/1,235,205.60 = 350,075.20/x
  3. Step 3: Cross multiply
    823,393.60x = 1,235,205.60 × 350,075.20
  4. Step 4: Simplify right side
    823,393.60x = 432,414,847,461.12
  5. Step 5: Solve for x
    x = 432,414,847,461.12/823,393.60
  6. Step 6: Final answer
    x = 525,161.78

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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.