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Finding the Fourth Proportional to 695,661.80, 959,567.22 and 477,765.32

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Solution

The fourth proportional to 695,661.80, 959,567.22 and 477,765.32 is: 659,009.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,661.80 : 959,567.22 = 477,765.32 : x
  2. Step 2: Convert to fraction form
    695,661.80/959,567.22 = 477,765.32/x
  3. Step 3: Cross multiply
    695,661.80x = 959,567.22 × 477,765.32
  4. Step 4: Simplify right side
    695,661.80x = 458,447,939,924.81
  5. Step 5: Solve for x
    x = 458,447,939,924.81/695,661.80
  6. Step 6: Final answer
    x = 659,009.79

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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.