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Finding the Fourth Proportional to 496,036.63, 744,385.83 and 318,670.93

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Solution

The fourth proportional to 496,036.63, 744,385.83 and 318,670.93 is: 478,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,036.63 : 744,385.83 = 318,670.93 : x
  2. Step 2: Convert to fraction form
    496,036.63/744,385.83 = 318,670.93/x
  3. Step 3: Cross multiply
    496,036.63x = 744,385.83 × 318,670.93
  4. Step 4: Simplify right side
    496,036.63x = 237,214,124,724.92
  5. Step 5: Solve for x
    x = 237,214,124,724.92/496,036.63
  6. Step 6: Final answer
    x = 478,218.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.