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Finding the Fourth Proportional to 341,431.10, 512,146.65 and 181,998.80

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Solution

The fourth proportional to 341,431.10, 512,146.65 and 181,998.80 is: 272,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,431.10 : 512,146.65 = 181,998.80 : x
  2. Step 2: Convert to fraction form
    341,431.10/512,146.65 = 181,998.80/x
  3. Step 3: Cross multiply
    341,431.10x = 512,146.65 × 181,998.80
  4. Step 4: Simplify right side
    341,431.10x = 93,210,075,724.02
  5. Step 5: Solve for x
    x = 93,210,075,724.02/341,431.10
  6. Step 6: Final answer
    x = 272,998.20

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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.