Home / 319,511.48-440,923.38-176,277.56

Finding the Fourth Proportional to 319,511.48, 440,923.38 and 176,277.56

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Solution

The fourth proportional to 319,511.48, 440,923.38 and 176,277.56 is: 243,261.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,511.48 : 440,923.38 = 176,277.56 : x
  2. Step 2: Convert to fraction form
    319,511.48/440,923.38 = 176,277.56/x
  3. Step 3: Cross multiply
    319,511.48x = 440,923.38 × 176,277.56
  4. Step 4: Simplify right side
    319,511.48x = 77,724,897,573.35
  5. Step 5: Solve for x
    x = 77,724,897,573.35/319,511.48
  6. Step 6: Final answer
    x = 243,261.67

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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.