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Finding the Fourth Proportional to 836,695.84, 1,154,639.76 and 454,722.72

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Solution

The fourth proportional to 836,695.84, 1,154,639.76 and 454,722.72 is: 627,517.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,695.84 : 1,154,639.76 = 454,722.72 : x
  2. Step 2: Convert to fraction form
    836,695.84/1,154,639.76 = 454,722.72/x
  3. Step 3: Cross multiply
    836,695.84x = 1,154,639.76 × 454,722.72
  4. Step 4: Simplify right side
    836,695.84x = 525,040,932,287.35
  5. Step 5: Solve for x
    x = 525,040,932,287.35/836,695.84
  6. Step 6: Final answer
    x = 627,517.08

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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.