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Finding the Fourth Proportional to 536,863.70, 805,253.66 and 312,080.75

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Solution

The fourth proportional to 536,863.70, 805,253.66 and 312,080.75 is: 468,096.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,863.70 : 805,253.66 = 312,080.75 : x
  2. Step 2: Convert to fraction form
    536,863.70/805,253.66 = 312,080.75/x
  3. Step 3: Cross multiply
    536,863.70x = 805,253.66 × 312,080.75
  4. Step 4: Simplify right side
    536,863.70x = 251,304,168,946.38
  5. Step 5: Solve for x
    x = 251,304,168,946.38/536,863.70
  6. Step 6: Final answer
    x = 468,096.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.