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Finding the Fourth Proportional to 615,091.10, 922,636.65 and 171,859.10

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Solution

The fourth proportional to 615,091.10, 922,636.65 and 171,859.10 is: 257,788.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,091.10 : 922,636.65 = 171,859.10 : x
  2. Step 2: Convert to fraction form
    615,091.10/922,636.65 = 171,859.10/x
  3. Step 3: Cross multiply
    615,091.10x = 922,636.65 × 171,859.10
  4. Step 4: Simplify right side
    615,091.10x = 158,563,504,296.02
  5. Step 5: Solve for x
    x = 158,563,504,296.02/615,091.10
  6. Step 6: Final answer
    x = 257,788.65

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Similar ratio
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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.