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Finding the Fourth Proportional to 281,774.70, 388,888.96 and 174,379.32

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Solution

The fourth proportional to 281,774.70, 388,888.96 and 174,379.32 is: 240,668.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,774.70 : 388,888.96 = 174,379.32 : x
  2. Step 2: Convert to fraction form
    281,774.70/388,888.96 = 174,379.32/x
  3. Step 3: Cross multiply
    281,774.70x = 388,888.96 × 174,379.32
  4. Step 4: Simplify right side
    281,774.70x = 67,814,192,400.31
  5. Step 5: Solve for x
    x = 67,814,192,400.31/281,774.70
  6. Step 6: Final answer
    x = 240,668.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.