Home / 805,441.88-1,111,538.34-442,893.32

Finding the Fourth Proportional to 805,441.88, 1,111,538.34 and 442,893.32

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Solution

The fourth proportional to 805,441.88, 1,111,538.34 and 442,893.32 is: 611,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,441.88 : 1,111,538.34 = 442,893.32 : x
  2. Step 2: Convert to fraction form
    805,441.88/1,111,538.34 = 442,893.32/x
  3. Step 3: Cross multiply
    805,441.88x = 1,111,538.34 × 442,893.32
  4. Step 4: Simplify right side
    805,441.88x = 492,292,905,709.89
  5. Step 5: Solve for x
    x = 492,292,905,709.89/805,441.88
  6. Step 6: Final answer
    x = 611,208.48

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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.