Home / 810,103.68-1,118,008.44-447,559.16

Finding the Fourth Proportional to 810,103.68, 1,118,008.44 and 447,559.16

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Solution

The fourth proportional to 810,103.68, 1,118,008.44 and 447,559.16 is: 617,667.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,103.68 : 1,118,008.44 = 447,559.16 : x
  2. Step 2: Convert to fraction form
    810,103.68/1,118,008.44 = 447,559.16/x
  3. Step 3: Cross multiply
    810,103.68x = 1,118,008.44 × 447,559.16
  4. Step 4: Simplify right side
    810,103.68x = 500,374,912,689.27
  5. Step 5: Solve for x
    x = 500,374,912,689.27/810,103.68
  6. Step 6: Final answer
    x = 617,667.74

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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.