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Finding the Fourth Proportional to 700,213.77, 966,706.80 and 659,857.47

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Solution

The fourth proportional to 700,213.77, 966,706.80 and 659,857.47 is: 910,991.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,213.77 : 966,706.80 = 659,857.47 : x
  2. Step 2: Convert to fraction form
    700,213.77/966,706.80 = 659,857.47/x
  3. Step 3: Cross multiply
    700,213.77x = 966,706.80 × 659,857.47
  4. Step 4: Simplify right side
    700,213.77x = 637,888,706,329.60
  5. Step 5: Solve for x
    x = 637,888,706,329.60/700,213.77
  6. Step 6: Final answer
    x = 910,991.37

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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.