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Finding the Fourth Proportional to 271,875.80, 407,813.70 and 177,397.40

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Solution

The fourth proportional to 271,875.80, 407,813.70 and 177,397.40 is: 266,096.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,875.80 : 407,813.70 = 177,397.40 : x
  2. Step 2: Convert to fraction form
    271,875.80/407,813.70 = 177,397.40/x
  3. Step 3: Cross multiply
    271,875.80x = 407,813.70 × 177,397.40
  4. Step 4: Simplify right side
    271,875.80x = 72,345,090,064.38
  5. Step 5: Solve for x
    x = 72,345,090,064.38/271,875.80
  6. Step 6: Final answer
    x = 266,096.10

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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.