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Finding the Fourth Proportional to 697,714.64, 963,112.60 and 678,517.44

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Solution

The fourth proportional to 697,714.64, 963,112.60 and 678,517.44 is: 936,613.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,714.64 : 963,112.60 = 678,517.44 : x
  2. Step 2: Convert to fraction form
    697,714.64/963,112.60 = 678,517.44/x
  3. Step 3: Cross multiply
    697,714.64x = 963,112.60 × 678,517.44
  4. Step 4: Simplify right side
    697,714.64x = 653,488,695,783.74
  5. Step 5: Solve for x
    x = 653,488,695,783.74/697,714.64
  6. Step 6: Final answer
    x = 936,613.13

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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.