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Finding the Fourth Proportional to 415,920.10, 623,880.24 and 116,444.79

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Solution

The fourth proportional to 415,920.10, 623,880.24 and 116,444.79 is: 174,667.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,920.10 : 623,880.24 = 116,444.79 : x
  2. Step 2: Convert to fraction form
    415,920.10/623,880.24 = 116,444.79/x
  3. Step 3: Cross multiply
    415,920.10x = 623,880.24 × 116,444.79
  4. Step 4: Simplify right side
    415,920.10x = 72,647,603,531.95
  5. Step 5: Solve for x
    x = 72,647,603,531.95/415,920.10
  6. Step 6: Final answer
    x = 174,667.21

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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.