Home / 664,142.35-916,587.06-406,170.22

Finding the Fourth Proportional to 664,142.35, 916,587.06 and 406,170.22

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Solution

The fourth proportional to 664,142.35, 916,587.06 and 406,170.22 is: 560,558.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,142.35 : 916,587.06 = 406,170.22 : x
  2. Step 2: Convert to fraction form
    664,142.35/916,587.06 = 406,170.22/x
  3. Step 3: Cross multiply
    664,142.35x = 916,587.06 × 406,170.22
  4. Step 4: Simplify right side
    664,142.35x = 372,290,367,809.35
  5. Step 5: Solve for x
    x = 372,290,367,809.35/664,142.35
  6. Step 6: Final answer
    x = 560,558.09

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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.