Home / 634,185.77-875,212.11-376,215.45

Finding the Fourth Proportional to 634,185.77, 875,212.11 and 376,215.45

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Solution

The fourth proportional to 634,185.77, 875,212.11 and 376,215.45 is: 519,198.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,185.77 : 875,212.11 = 376,215.45 : x
  2. Step 2: Convert to fraction form
    634,185.77/875,212.11 = 376,215.45/x
  3. Step 3: Cross multiply
    634,185.77x = 875,212.11 × 376,215.45
  4. Step 4: Simplify right side
    634,185.77x = 329,268,317,809.10
  5. Step 5: Solve for x
    x = 329,268,317,809.10/634,185.77
  6. Step 6: Final answer
    x = 519,198.53

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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.