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Finding the Fourth Proportional to 665,827.88, 918,845.71 and 364,021.88

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Solution

The fourth proportional to 665,827.88, 918,845.71 and 364,021.88 is: 502,351.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,827.88 : 918,845.71 = 364,021.88 : x
  2. Step 2: Convert to fraction form
    665,827.88/918,845.71 = 364,021.88/x
  3. Step 3: Cross multiply
    665,827.88x = 918,845.71 × 364,021.88
  4. Step 4: Simplify right side
    665,827.88x = 334,479,937,279.85
  5. Step 5: Solve for x
    x = 334,479,937,279.85/665,827.88
  6. Step 6: Final answer
    x = 502,351.96

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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.