Home / 808,561.67-1,115,795.55-445,977.74

Finding the Fourth Proportional to 808,561.67, 1,115,795.55 and 445,977.74

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Solution

The fourth proportional to 808,561.67, 1,115,795.55 and 445,977.74 is: 615,438.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,561.67 : 1,115,795.55 = 445,977.74 : x
  2. Step 2: Convert to fraction form
    808,561.67/1,115,795.55 = 445,977.74/x
  3. Step 3: Cross multiply
    808,561.67x = 1,115,795.55 × 445,977.74
  4. Step 4: Simplify right side
    808,561.67x = 497,619,970,439.66
  5. Step 5: Solve for x
    x = 497,619,970,439.66/808,561.67
  6. Step 6: Final answer
    x = 615,438.49

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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.