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Finding the Fourth Proportional to 446,627.50, 616,355.70 and 245,423.50

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Solution

The fourth proportional to 446,627.50, 616,355.70 and 245,423.50 is: 338,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,627.50 : 616,355.70 = 245,423.50 : x
  2. Step 2: Convert to fraction form
    446,627.50/616,355.70 = 245,423.50/x
  3. Step 3: Cross multiply
    446,627.50x = 616,355.70 × 245,423.50
  4. Step 4: Simplify right side
    446,627.50x = 151,268,173,138.95
  5. Step 5: Solve for x
    x = 151,268,173,138.95/446,627.50
  6. Step 6: Final answer
    x = 338,689.79

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1.5x scale

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.