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Finding the Fourth Proportional to 478,658.02, 660,535.08 and 263,798.02

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Solution

The fourth proportional to 478,658.02, 660,535.08 and 263,798.02 is: 364,034.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,658.02 : 660,535.08 = 263,798.02 : x
  2. Step 2: Convert to fraction form
    478,658.02/660,535.08 = 263,798.02/x
  3. Step 3: Cross multiply
    478,658.02x = 660,535.08 × 263,798.02
  4. Step 4: Simplify right side
    478,658.02x = 174,247,846,244.54
  5. Step 5: Solve for x
    x = 174,247,846,244.54/478,658.02
  6. Step 6: Final answer
    x = 364,034.11

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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.