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Finding the Fourth Proportional to 343,189.50, 473,441.32 and 215,935.26

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Solution

The fourth proportional to 343,189.50, 473,441.32 and 215,935.26 is: 297,889.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,189.50 : 473,441.32 = 215,935.26 : x
  2. Step 2: Convert to fraction form
    343,189.50/473,441.32 = 215,935.26/x
  3. Step 3: Cross multiply
    343,189.50x = 473,441.32 × 215,935.26
  4. Step 4: Simplify right side
    343,189.50x = 102,232,674,528.94
  5. Step 5: Solve for x
    x = 102,232,674,528.94/343,189.50
  6. Step 6: Final answer
    x = 297,889.87

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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.