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Finding the Fourth Proportional to 303,678.09, 419,127.03 and 176,427.51

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Solution

The fourth proportional to 303,678.09, 419,127.03 and 176,427.51 is: 243,499.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,678.09 : 419,127.03 = 176,427.51 : x
  2. Step 2: Convert to fraction form
    303,678.09/419,127.03 = 176,427.51/x
  3. Step 3: Cross multiply
    303,678.09x = 419,127.03 × 176,427.51
  4. Step 4: Simplify right side
    303,678.09x = 73,945,538,276.60
  5. Step 5: Solve for x
    x = 73,945,538,276.60/303,678.09
  6. Step 6: Final answer
    x = 243,499.75

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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.