Home / 405,020.76-558,933.84-223,731.96

Finding the Fourth Proportional to 405,020.76, 558,933.84 and 223,731.96

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Solution

The fourth proportional to 405,020.76, 558,933.84 and 223,731.96 is: 308,752.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,020.76 : 558,933.84 = 223,731.96 : x
  2. Step 2: Convert to fraction form
    405,020.76/558,933.84 = 223,731.96/x
  3. Step 3: Cross multiply
    405,020.76x = 558,933.84 × 223,731.96
  4. Step 4: Simplify right side
    405,020.76x = 125,051,363,533.53
  5. Step 5: Solve for x
    x = 125,051,363,533.53/405,020.76
  6. Step 6: Final answer
    x = 308,752.97

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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.