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Finding the Fourth Proportional to 478,657.02, 660,533.70 and 263,797.02

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Solution

The fourth proportional to 478,657.02, 660,533.70 and 263,797.02 is: 364,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,657.02 : 660,533.70 = 263,797.02 : x
  2. Step 2: Convert to fraction form
    478,657.02/660,533.70 = 263,797.02/x
  3. Step 3: Cross multiply
    478,657.02x = 660,533.70 × 263,797.02
  4. Step 4: Simplify right side
    478,657.02x = 174,246,821,669.57
  5. Step 5: Solve for x
    x = 174,246,821,669.57/478,657.02
  6. Step 6: Final answer
    x = 364,032.73

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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.