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Finding the Fourth Proportional to 574,215.64, 792,409.88 and 319,566.76

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Solution

The fourth proportional to 574,215.64, 792,409.88 and 319,566.76 is: 440,997.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,215.64 : 792,409.88 = 319,566.76 : x
  2. Step 2: Convert to fraction form
    574,215.64/792,409.88 = 319,566.76/x
  3. Step 3: Cross multiply
    574,215.64x = 792,409.88 × 319,566.76
  4. Step 4: Simplify right side
    574,215.64x = 253,227,857,943.59
  5. Step 5: Solve for x
    x = 253,227,857,943.59/574,215.64
  6. Step 6: Final answer
    x = 440,997.84

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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.