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Finding the Fourth Proportional to 478,653.02, 660,528.18 and 263,793.02

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Solution

The fourth proportional to 478,653.02, 660,528.18 and 263,793.02 is: 364,027.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,653.02 : 660,528.18 = 263,793.02 : x
  2. Step 2: Convert to fraction form
    478,653.02/660,528.18 = 263,793.02/x
  3. Step 3: Cross multiply
    478,653.02x = 660,528.18 × 263,793.02
  4. Step 4: Simplify right side
    478,653.02x = 174,242,723,397.30
  5. Step 5: Solve for x
    x = 174,242,723,397.30/478,653.02
  6. Step 6: Final answer
    x = 364,027.21

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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.