Home / 822,922.95-1,135,589.45-455,383.95

Finding the Fourth Proportional to 822,922.95, 1,135,589.45 and 455,383.95

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Solution

The fourth proportional to 822,922.95, 1,135,589.45 and 455,383.95 is: 628,405.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,922.95 : 1,135,589.45 = 455,383.95 : x
  2. Step 2: Convert to fraction form
    822,922.95/1,135,589.45 = 455,383.95/x
  3. Step 3: Cross multiply
    822,922.95x = 1,135,589.45 × 455,383.95
  4. Step 4: Simplify right side
    822,922.95x = 517,129,209,319.33
  5. Step 5: Solve for x
    x = 517,129,209,319.33/822,922.95
  6. Step 6: Final answer
    x = 628,405.38

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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.