Home / 808,219.80-1,211,552.10-628,205.40

Finding the Fourth Proportional to 808,219.80, 1,211,552.10 and 628,205.40

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Solution

The fourth proportional to 808,219.80, 1,211,552.10 and 628,205.40 is: 941,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,219.80 : 1,211,552.10 = 628,205.40 : x
  2. Step 2: Convert to fraction form
    808,219.80/1,211,552.10 = 628,205.40/x
  3. Step 3: Cross multiply
    808,219.80x = 1,211,552.10 × 628,205.40
  4. Step 4: Simplify right side
    808,219.80x = 761,103,571,601.34
  5. Step 5: Solve for x
    x = 761,103,571,601.34/808,219.80
  6. Step 6: Final answer
    x = 941,703.69

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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.