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Finding the Fourth Proportional to 295,638.60, 443,457.90 and 127,239.60

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Solution

The fourth proportional to 295,638.60, 443,457.90 and 127,239.60 is: 190,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,638.60 : 443,457.90 = 127,239.60 : x
  2. Step 2: Convert to fraction form
    295,638.60/443,457.90 = 127,239.60/x
  3. Step 3: Cross multiply
    295,638.60x = 443,457.90 × 127,239.60
  4. Step 4: Simplify right side
    295,638.60x = 56,425,405,812.84
  5. Step 5: Solve for x
    x = 56,425,405,812.84/295,638.60
  6. Step 6: Final answer
    x = 190,859.40

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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.