Home / 664,837.40-917,509.97-406,633.35

Finding the Fourth Proportional to 664,837.40, 917,509.97 and 406,633.35

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Solution

The fourth proportional to 664,837.40, 917,509.97 and 406,633.35 is: 561,175.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,837.40 : 917,509.97 = 406,633.35 : x
  2. Step 2: Convert to fraction form
    664,837.40/917,509.97 = 406,633.35/x
  3. Step 3: Cross multiply
    664,837.40x = 917,509.97 × 406,633.35
  4. Step 4: Simplify right side
    664,837.40x = 373,090,150,726.33
  5. Step 5: Solve for x
    x = 373,090,150,726.33/664,837.40
  6. Step 6: Final answer
    x = 561,175.03

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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.