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Finding the Fourth Proportional to 586,812.21, 810,204.21 and 396,092.85

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Solution

The fourth proportional to 586,812.21, 810,204.21 and 396,092.85 is: 546,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,812.21 : 810,204.21 = 396,092.85 : x
  2. Step 2: Convert to fraction form
    586,812.21/810,204.21 = 396,092.85/x
  3. Step 3: Cross multiply
    586,812.21x = 810,204.21 × 396,092.85
  4. Step 4: Simplify right side
    586,812.21x = 320,916,094,620.90
  5. Step 5: Solve for x
    x = 320,916,094,620.90/586,812.21
  6. Step 6: Final answer
    x = 546,880.40

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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.