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Finding the Fourth Proportional to 886,155, 1,222,732.56 and 498,910.20

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Solution

The fourth proportional to 886,155, 1,222,732.56 and 498,910.20 is: 688,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,155 : 1,222,732.56 = 498,910.20 : x
  2. Step 2: Convert to fraction form
    886,155/1,222,732.56 = 498,910.20/x
  3. Step 3: Cross multiply
    886,155x = 1,222,732.56 × 498,910.20
  4. Step 4: Simplify right side
    886,155x = 610,033,746,056.11
  5. Step 5: Solve for x
    x = 610,033,746,056.11/886,155
  6. Step 6: Final answer
    x = 688,405.24

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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.