Home / 406,218.69-561,165.72-324,439.58

Finding the Fourth Proportional to 406,218.69, 561,165.72 and 324,439.58

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Solution

The fourth proportional to 406,218.69, 561,165.72 and 324,439.58 is: 448,192.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,218.69 : 561,165.72 = 324,439.58 : x
  2. Step 2: Convert to fraction form
    406,218.69/561,165.72 = 324,439.58/x
  3. Step 3: Cross multiply
    406,218.69x = 561,165.72 × 324,439.58
  4. Step 4: Simplify right side
    406,218.69x = 182,064,367,701.37
  5. Step 5: Solve for x
    x = 182,064,367,701.37/406,218.69
  6. Step 6: Final answer
    x = 448,192.99

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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.