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Finding the Fourth Proportional to 478,655.02, 660,530.94 and 263,795.02

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Solution

The fourth proportional to 478,655.02, 660,530.94 and 263,795.02 is: 364,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,655.02 : 660,530.94 = 263,795.02 : x
  2. Step 2: Convert to fraction form
    478,655.02/660,530.94 = 263,795.02/x
  3. Step 3: Cross multiply
    478,655.02x = 660,530.94 × 263,795.02
  4. Step 4: Simplify right side
    478,655.02x = 174,244,772,527.92
  5. Step 5: Solve for x
    x = 174,244,772,527.92/478,655.02
  6. Step 6: Final answer
    x = 364,029.97

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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.