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Finding the Fourth Proportional to 360,581.70, 497,543.28 and 199,405.26

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Solution

The fourth proportional to 360,581.70, 497,543.28 and 199,405.26 is: 275,146.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,581.70 : 497,543.28 = 199,405.26 : x
  2. Step 2: Convert to fraction form
    360,581.70/497,543.28 = 199,405.26/x
  3. Step 3: Cross multiply
    360,581.70x = 497,543.28 × 199,405.26
  4. Step 4: Simplify right side
    360,581.70x = 99,212,747,109.65
  5. Step 5: Solve for x
    x = 99,212,747,109.65/360,581.70
  6. Step 6: Final answer
    x = 275,146.37

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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.