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Finding the Fourth Proportional to 295,697.20, 443,302.80 and 127,346.80

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Solution

The fourth proportional to 295,697.20, 443,302.80 and 127,346.80 is: 190,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,697.20 : 443,302.80 = 127,346.80 : x
  2. Step 2: Convert to fraction form
    295,697.20/443,302.80 = 127,346.80/x
  3. Step 3: Cross multiply
    295,697.20x = 443,302.80 × 127,346.80
  4. Step 4: Simplify right side
    295,697.20x = 56,453,193,011.04
  5. Step 5: Solve for x
    x = 56,453,193,011.04/295,697.20
  6. Step 6: Final answer
    x = 190,915.55

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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.