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Finding the Fourth Proportional to 674,713.38, 931,801.68 and 583,632.12

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Solution

The fourth proportional to 674,713.38, 931,801.68 and 583,632.12 is: 806,015.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,713.38 : 931,801.68 = 583,632.12 : x
  2. Step 2: Convert to fraction form
    674,713.38/931,801.68 = 583,632.12/x
  3. Step 3: Cross multiply
    674,713.38x = 931,801.68 × 583,632.12
  4. Step 4: Simplify right side
    674,713.38x = 543,829,389,917.96
  5. Step 5: Solve for x
    x = 543,829,389,917.96/674,713.38
  6. Step 6: Final answer
    x = 806,015.42

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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.