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Finding the Fourth Proportional to 574,101.20, 792,258.12 and 319,446.32

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Solution

The fourth proportional to 574,101.20, 792,258.12 and 319,446.32 is: 440,835.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,101.20 : 792,258.12 = 319,446.32 : x
  2. Step 2: Convert to fraction form
    574,101.20/792,258.12 = 319,446.32/x
  3. Step 3: Cross multiply
    574,101.20x = 792,258.12 × 319,446.32
  4. Step 4: Simplify right side
    574,101.20x = 253,083,940,924.12
  5. Step 5: Solve for x
    x = 253,083,940,924.12/574,101.20
  6. Step 6: Final answer
    x = 440,835.07

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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.