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Finding the Fourth Proportional to 477,904.10, 659,502.45 and 263,039.54

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Solution

The fourth proportional to 477,904.10, 659,502.45 and 263,039.54 is: 362,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,904.10 : 659,502.45 = 263,039.54 : x
  2. Step 2: Convert to fraction form
    477,904.10/659,502.45 = 263,039.54/x
  3. Step 3: Cross multiply
    477,904.10x = 659,502.45 × 263,039.54
  4. Step 4: Simplify right side
    477,904.10x = 173,475,217,779.36
  5. Step 5: Solve for x
    x = 173,475,217,779.36/477,904.10
  6. Step 6: Final answer
    x = 362,991.70

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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.