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Finding the Fourth Proportional to 270,354.13, 405,554.25 and 70,674.19

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Solution

The fourth proportional to 270,354.13, 405,554.25 and 70,674.19 is: 106,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,354.13 : 405,554.25 = 70,674.19 : x
  2. Step 2: Convert to fraction form
    270,354.13/405,554.25 = 70,674.19/x
  3. Step 3: Cross multiply
    270,354.13x = 405,554.25 × 70,674.19
  4. Step 4: Simplify right side
    270,354.13x = 28,662,216,092.04
  5. Step 5: Solve for x
    x = 28,662,216,092.04/270,354.13
  6. Step 6: Final answer
    x = 106,017.31

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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.