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Finding the Fourth Proportional to 866,832.70, 1,297,714.65 and 618,000.70

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Solution

The fourth proportional to 866,832.70, 1,297,714.65 and 618,000.70 is: 925,194.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,832.70 : 1,297,714.65 = 618,000.70 : x
  2. Step 2: Convert to fraction form
    866,832.70/1,297,714.65 = 618,000.70/x
  3. Step 3: Cross multiply
    866,832.70x = 1,297,714.65 × 618,000.70
  4. Step 4: Simplify right side
    866,832.70x = 801,988,562,100.26
  5. Step 5: Solve for x
    x = 801,988,562,100.26/866,832.70
  6. Step 6: Final answer
    x = 925,194.17

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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.