Home / 810,212.40-1,118,104.80-447,644.64

Finding the Fourth Proportional to 810,212.40, 1,118,104.80 and 447,644.64

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Solution

The fourth proportional to 810,212.40, 1,118,104.80 and 447,644.64 is: 617,756.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,212.40 : 1,118,104.80 = 447,644.64 : x
  2. Step 2: Convert to fraction form
    810,212.40/1,118,104.80 = 447,644.64/x
  3. Step 3: Cross multiply
    810,212.40x = 1,118,104.80 × 447,644.64
  4. Step 4: Simplify right side
    810,212.40x = 500,513,620,678.27
  5. Step 5: Solve for x
    x = 500,513,620,678.27/810,212.40
  6. Step 6: Final answer
    x = 617,756.06

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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.