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Finding the Fourth Proportional to 697,713.64, 963,111.23 and 678,516.43

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Solution

The fourth proportional to 697,713.64, 963,111.23 and 678,516.43 is: 936,611.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,713.64 : 963,111.23 = 678,516.43 : x
  2. Step 2: Convert to fraction form
    697,713.64/963,111.23 = 678,516.43/x
  3. Step 3: Cross multiply
    697,713.64x = 963,111.23 × 678,516.43
  4. Step 4: Simplify right side
    697,713.64x = 653,486,793,472.51
  5. Step 5: Solve for x
    x = 653,486,793,472.51/697,713.64
  6. Step 6: Final answer
    x = 936,611.75

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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.