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Finding the Fourth Proportional to 270,940.80, 406,411.20 and 176,462.40

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Solution

The fourth proportional to 270,940.80, 406,411.20 and 176,462.40 is: 264,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,940.80 : 406,411.20 = 176,462.40 : x
  2. Step 2: Convert to fraction form
    270,940.80/406,411.20 = 176,462.40/x
  3. Step 3: Cross multiply
    270,940.80x = 406,411.20 × 176,462.40
  4. Step 4: Simplify right side
    270,940.80x = 71,716,295,738.88
  5. Step 5: Solve for x
    x = 71,716,295,738.88/270,940.80
  6. Step 6: Final answer
    x = 264,693.60

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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.