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Finding the Fourth Proportional to 270,476.80, 405,715.20 and 176,473.60

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Solution

The fourth proportional to 270,476.80, 405,715.20 and 176,473.60 is: 264,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,476.80 : 405,715.20 = 176,473.60 : x
  2. Step 2: Convert to fraction form
    270,476.80/405,715.20 = 176,473.60/x
  3. Step 3: Cross multiply
    270,476.80x = 405,715.20 × 176,473.60
  4. Step 4: Simplify right side
    270,476.80x = 71,598,021,918.72
  5. Step 5: Solve for x
    x = 71,598,021,918.72/270,476.80
  6. Step 6: Final answer
    x = 264,710.40

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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.