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Finding the Fourth Proportional to 814,597.20, 1,222,333.20 and 341,330.40

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Solution

The fourth proportional to 814,597.20, 1,222,333.20 and 341,330.40 is: 512,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,597.20 : 1,222,333.20 = 341,330.40 : x
  2. Step 2: Convert to fraction form
    814,597.20/1,222,333.20 = 341,330.40/x
  3. Step 3: Cross multiply
    814,597.20x = 1,222,333.20 × 341,330.40
  4. Step 4: Simplify right side
    814,597.20x = 417,219,480,089.28
  5. Step 5: Solve for x
    x = 417,219,480,089.28/814,597.20
  6. Step 6: Final answer
    x = 512,178.88

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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.