Home / 405,030.34-558,946.56-223,738.53

Finding the Fourth Proportional to 405,030.34, 558,946.56 and 223,738.53

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Solution

The fourth proportional to 405,030.34, 558,946.56 and 223,738.53 is: 308,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,030.34 : 558,946.56 = 223,738.53 : x
  2. Step 2: Convert to fraction form
    405,030.34/558,946.56 = 223,738.53/x
  3. Step 3: Cross multiply
    405,030.34x = 558,946.56 × 223,738.53
  4. Step 4: Simplify right side
    405,030.34x = 125,057,881,682.96
  5. Step 5: Solve for x
    x = 125,057,881,682.96/405,030.34
  6. Step 6: Final answer
    x = 308,761.76

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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.