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Finding the Fourth Proportional to 671,369.32, 926,489.65 and 369,563.32

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Solution

The fourth proportional to 671,369.32, 926,489.65 and 369,563.32 is: 509,997.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,369.32 : 926,489.65 = 369,563.32 : x
  2. Step 2: Convert to fraction form
    671,369.32/926,489.65 = 369,563.32/x
  3. Step 3: Cross multiply
    671,369.32x = 926,489.65 × 369,563.32
  4. Step 4: Simplify right side
    671,369.32x = 342,396,590,999.64
  5. Step 5: Solve for x
    x = 342,396,590,999.64/671,369.32
  6. Step 6: Final answer
    x = 509,997.38

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Double scale
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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.