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Finding the Fourth Proportional to 231,674.80, 348,254.60 and 215,239.60

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Solution

The fourth proportional to 231,674.80, 348,254.60 and 215,239.60 is: 323,549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,674.80 : 348,254.60 = 215,239.60 : x
  2. Step 2: Convert to fraction form
    231,674.80/348,254.60 = 215,239.60/x
  3. Step 3: Cross multiply
    231,674.80x = 348,254.60 × 215,239.60
  4. Step 4: Simplify right side
    231,674.80x = 74,958,180,802.16
  5. Step 5: Solve for x
    x = 74,958,180,802.16/231,674.80
  6. Step 6: Final answer
    x = 323,549.13

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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.