Home / 810,214.11-1,118,160.99-447,669.72

Finding the Fourth Proportional to 810,214.11, 1,118,160.99 and 447,669.72

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Solution

The fourth proportional to 810,214.11, 1,118,160.99 and 447,669.72 is: 617,820.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,214.11 : 1,118,160.99 = 447,669.72 : x
  2. Step 2: Convert to fraction form
    810,214.11/1,118,160.99 = 447,669.72/x
  3. Step 3: Cross multiply
    810,214.11x = 1,118,160.99 × 447,669.72
  4. Step 4: Simplify right side
    810,214.11x = 500,566,817,308.22
  5. Step 5: Solve for x
    x = 500,566,817,308.22/810,214.11
  6. Step 6: Final answer
    x = 617,820.41

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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.