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Finding the Fourth Proportional to 691,086.68, 954,076.00 and 477,376.68

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Solution

The fourth proportional to 691,086.68, 954,076.00 and 477,376.68 is: 659,039.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,086.68 : 954,076.00 = 477,376.68 : x
  2. Step 2: Convert to fraction form
    691,086.68/954,076.00 = 477,376.68/x
  3. Step 3: Cross multiply
    691,086.68x = 954,076.00 × 477,376.68
  4. Step 4: Simplify right side
    691,086.68x = 455,453,636,627.11
  5. Step 5: Solve for x
    x = 455,453,636,627.11/691,086.68
  6. Step 6: Final answer
    x = 659,039.81

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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.