Home / 405,114.09-559,063.29-223,830.19

Finding the Fourth Proportional to 405,114.09, 559,063.29 and 223,830.19

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Solution

The fourth proportional to 405,114.09, 559,063.29 and 223,830.19 is: 308,888.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,114.09 : 559,063.29 = 223,830.19 : x
  2. Step 2: Convert to fraction form
    405,114.09/559,063.29 = 223,830.19/x
  3. Step 3: Cross multiply
    405,114.09x = 559,063.29 × 223,830.19
  4. Step 4: Simplify right side
    405,114.09x = 125,135,242,422.73
  5. Step 5: Solve for x
    x = 125,135,242,422.73/405,114.09
  6. Step 6: Final answer
    x = 308,888.89

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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.