Home / 805,119.72-1,111,009.14-442,534.56

Finding the Fourth Proportional to 805,119.72, 1,111,009.14 and 442,534.56

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Solution

The fourth proportional to 805,119.72, 1,111,009.14 and 442,534.56 is: 610,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,119.72 : 1,111,009.14 = 442,534.56 : x
  2. Step 2: Convert to fraction form
    805,119.72/1,111,009.14 = 442,534.56/x
  3. Step 3: Cross multiply
    805,119.72x = 1,111,009.14 × 442,534.56
  4. Step 4: Simplify right side
    805,119.72x = 491,659,940,925.88
  5. Step 5: Solve for x
    x = 491,659,940,925.88/805,119.72
  6. Step 6: Final answer
    x = 610,666.87

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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.