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Finding the Fourth Proportional to 836,790, 1,154,777.81 and 454,817.69

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Solution

The fourth proportional to 836,790, 1,154,777.81 and 454,817.69 is: 627,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,790 : 1,154,777.81 = 454,817.69 : x
  2. Step 2: Convert to fraction form
    836,790/1,154,777.81 = 454,817.69/x
  3. Step 3: Cross multiply
    836,790x = 1,154,777.81 × 454,817.69
  4. Step 4: Simplify right side
    836,790x = 525,213,376,007.46
  5. Step 5: Solve for x
    x = 525,213,376,007.46/836,790
  6. Step 6: Final answer
    x = 627,652.55

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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.