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Finding the Fourth Proportional to 478,663.02, 660,541.95 and 263,803.01

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Solution

The fourth proportional to 478,663.02, 660,541.95 and 263,803.01 is: 364,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,663.02 : 660,541.95 = 263,803.01 : x
  2. Step 2: Convert to fraction form
    478,663.02/660,541.95 = 263,803.01/x
  3. Step 3: Cross multiply
    478,663.02x = 660,541.95 × 263,803.01
  4. Step 4: Simplify right side
    478,663.02x = 174,252,951,338.56
  5. Step 5: Solve for x
    x = 174,252,951,338.56/478,663.02
  6. Step 6: Final answer
    x = 364,040.97

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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.