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Finding the Fourth Proportional to 477,643.74, 659,148.33 and 262,779.19

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Solution

The fourth proportional to 477,643.74, 659,148.33 and 262,779.19 is: 362,635.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,643.74 : 659,148.33 = 262,779.19 : x
  2. Step 2: Convert to fraction form
    477,643.74/659,148.33 = 262,779.19/x
  3. Step 3: Cross multiply
    477,643.74x = 659,148.33 × 262,779.19
  4. Step 4: Simplify right side
    477,643.74x = 173,210,463,584.80
  5. Step 5: Solve for x
    x = 173,210,463,584.80/477,643.74
  6. Step 6: Final answer
    x = 362,635.27

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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.