Home / 405,117.07-559,013.90-223,818.19

Finding the Fourth Proportional to 405,117.07, 559,013.90 and 223,818.19

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Solution

The fourth proportional to 405,117.07, 559,013.90 and 223,818.19 is: 308,842.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,117.07 : 559,013.90 = 223,818.19 : x
  2. Step 2: Convert to fraction form
    405,117.07/559,013.90 = 223,818.19/x
  3. Step 3: Cross multiply
    405,117.07x = 559,013.90 × 223,818.19
  4. Step 4: Simplify right side
    405,117.07x = 125,117,476,766.22
  5. Step 5: Solve for x
    x = 125,117,476,766.22/405,117.07
  6. Step 6: Final answer
    x = 308,842.77

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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.