Home / 415,569.93-623,390.26-131,184.40

Finding the Fourth Proportional to 415,569.93, 623,390.26 and 131,184.40

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Solution

The fourth proportional to 415,569.93, 623,390.26 and 131,184.40 is: 196,787.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,569.93 : 623,390.26 = 131,184.40 : x
  2. Step 2: Convert to fraction form
    415,569.93/623,390.26 = 131,184.40/x
  3. Step 3: Cross multiply
    415,569.93x = 623,390.26 × 131,184.40
  4. Step 4: Simplify right side
    415,569.93x = 81,779,077,223.94
  5. Step 5: Solve for x
    x = 81,779,077,223.94/415,569.93
  6. Step 6: Final answer
    x = 196,787.76

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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.