Home / 810,572.56-1,118,555.28-447,977.68

Finding the Fourth Proportional to 810,572.56, 1,118,555.28 and 447,977.68

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Solution

The fourth proportional to 810,572.56, 1,118,555.28 and 447,977.68 is: 618,189.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,572.56 : 1,118,555.28 = 447,977.68 : x
  2. Step 2: Convert to fraction form
    810,572.56/1,118,555.28 = 447,977.68/x
  3. Step 3: Cross multiply
    810,572.56x = 1,118,555.28 × 447,977.68
  4. Step 4: Simplify right side
    810,572.56x = 501,087,799,286.15
  5. Step 5: Solve for x
    x = 501,087,799,286.15/810,572.56
  6. Step 6: Final answer
    x = 618,189.94

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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.