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Finding the Fourth Proportional to 489,101.60, 733,652.40 and 336,886.40

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Solution

The fourth proportional to 489,101.60, 733,652.40 and 336,886.40 is: 505,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,101.60 : 733,652.40 = 336,886.40 : x
  2. Step 2: Convert to fraction form
    489,101.60/733,652.40 = 336,886.40/x
  3. Step 3: Cross multiply
    489,101.60x = 733,652.40 × 336,886.40
  4. Step 4: Simplify right side
    489,101.60x = 247,157,515,887.36
  5. Step 5: Solve for x
    x = 247,157,515,887.36/489,101.60
  6. Step 6: Final answer
    x = 505,329.60

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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.