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Finding the Fourth Proportional to 295,310.70, 407,387.07 and 193,291.26

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Solution

The fourth proportional to 295,310.70, 407,387.07 and 193,291.26 is: 266,649.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,310.70 : 407,387.07 = 193,291.26 : x
  2. Step 2: Convert to fraction form
    295,310.70/407,387.07 = 193,291.26/x
  3. Step 3: Cross multiply
    295,310.70x = 407,387.07 × 193,291.26
  4. Step 4: Simplify right side
    295,310.70x = 78,744,360,068.01
  5. Step 5: Solve for x
    x = 78,744,360,068.01/295,310.70
  6. Step 6: Final answer
    x = 266,649.19

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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.