Home / 405,062.61-558,983.75-223,786.23

Finding the Fourth Proportional to 405,062.61, 558,983.75 and 223,786.23

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Solution

The fourth proportional to 405,062.61, 558,983.75 and 223,786.23 is: 308,823.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,062.61 : 558,983.75 = 223,786.23 : x
  2. Step 2: Convert to fraction form
    405,062.61/558,983.75 = 223,786.23/x
  3. Step 3: Cross multiply
    405,062.61x = 558,983.75 × 223,786.23
  4. Step 4: Simplify right side
    405,062.61x = 125,092,864,924.83
  5. Step 5: Solve for x
    x = 125,092,864,924.83/405,062.61
  6. Step 6: Final answer
    x = 308,823.53

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Double scale
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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.