Home / 405,127.51-558,601.76-276,142.35

Finding the Fourth Proportional to 405,127.51, 558,601.76 and 276,142.35

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Solution

The fourth proportional to 405,127.51, 558,601.76 and 276,142.35 is: 380,753.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,127.51 : 558,601.76 = 276,142.35 : x
  2. Step 2: Convert to fraction form
    405,127.51/558,601.76 = 276,142.35/x
  3. Step 3: Cross multiply
    405,127.51x = 558,601.76 × 276,142.35
  4. Step 4: Simplify right side
    405,127.51x = 154,253,602,720.54
  5. Step 5: Solve for x
    x = 154,253,602,720.54/405,127.51
  6. Step 6: Final answer
    x = 380,753.22

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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.