Home / 415,567.81-623,387.07-131,182.28

Finding the Fourth Proportional to 415,567.81, 623,387.07 and 131,182.28

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Solution

The fourth proportional to 415,567.81, 623,387.07 and 131,182.28 is: 196,784.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,567.81 : 623,387.07 = 131,182.28 : x
  2. Step 2: Convert to fraction form
    415,567.81/623,387.07 = 131,182.28/x
  3. Step 3: Cross multiply
    415,567.81x = 623,387.07 × 131,182.28
  4. Step 4: Simplify right side
    415,567.81x = 81,777,334,048.18
  5. Step 5: Solve for x
    x = 81,777,334,048.18/415,567.81
  6. Step 6: Final answer
    x = 196,784.57

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1.5x scale

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.