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Finding the Fourth Proportional to 700,117.49, 966,082.23 and 394,185.98

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Solution

The fourth proportional to 700,117.49, 966,082.23 and 394,185.98 is: 543,931.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,117.49 : 966,082.23 = 394,185.98 : x
  2. Step 2: Convert to fraction form
    700,117.49/966,082.23 = 394,185.98/x
  3. Step 3: Cross multiply
    700,117.49x = 966,082.23 × 394,185.98
  4. Step 4: Simplify right side
    700,117.49x = 380,816,070,593.14
  5. Step 5: Solve for x
    x = 380,816,070,593.14/700,117.49
  6. Step 6: Final answer
    x = 543,931.66

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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.