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Finding the Fourth Proportional to 615,116.10, 922,674.15 and 171,884.10

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Solution

The fourth proportional to 615,116.10, 922,674.15 and 171,884.10 is: 257,826.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,116.10 : 922,674.15 = 171,884.10 : x
  2. Step 2: Convert to fraction form
    615,116.10/922,674.15 = 171,884.10/x
  3. Step 3: Cross multiply
    615,116.10x = 922,674.15 × 171,884.10
  4. Step 4: Simplify right side
    615,116.10x = 158,593,015,866.02
  5. Step 5: Solve for x
    x = 158,593,015,866.02/615,116.10
  6. Step 6: Final answer
    x = 257,826.15

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Double scale
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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.