Home / 290,311.05-434,975.19-177,756.24

Finding the Fourth Proportional to 290,311.05, 434,975.19 and 177,756.24

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Solution

The fourth proportional to 290,311.05, 434,975.19 and 177,756.24 is: 266,333.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,311.05 : 434,975.19 = 177,756.24 : x
  2. Step 2: Convert to fraction form
    290,311.05/434,975.19 = 177,756.24/x
  3. Step 3: Cross multiply
    290,311.05x = 434,975.19 × 177,756.24
  4. Step 4: Simplify right side
    290,311.05x = 77,319,554,267.69
  5. Step 5: Solve for x
    x = 77,319,554,267.69/290,311.05
  6. Step 6: Final answer
    x = 266,333.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.