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Finding the Fourth Proportional to 836,820, 1,154,807.28 and 454,848.84

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Solution

The fourth proportional to 836,820, 1,154,807.28 and 454,848.84 is: 627,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,820 : 1,154,807.28 = 454,848.84 : x
  2. Step 2: Convert to fraction form
    836,820/1,154,807.28 = 454,848.84/x
  3. Step 3: Cross multiply
    836,820x = 1,154,807.28 × 454,848.84
  4. Step 4: Simplify right side
    836,820x = 525,262,751,731.56
  5. Step 5: Solve for x
    x = 525,262,751,731.56/836,820
  6. Step 6: Final answer
    x = 627,689.05

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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.