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Finding the Fourth Proportional to 697,696.60, 962,755.50 and 391,713.22

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Solution

The fourth proportional to 697,696.60, 962,755.50 and 391,713.22 is: 540,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,696.60 : 962,755.50 = 391,713.22 : x
  2. Step 2: Convert to fraction form
    697,696.60/962,755.50 = 391,713.22/x
  3. Step 3: Cross multiply
    697,696.60x = 962,755.50 × 391,713.22
  4. Step 4: Simplify right side
    697,696.60x = 377,124,059,384.60
  5. Step 5: Solve for x
    x = 377,124,059,384.60/697,696.60
  6. Step 6: Final answer
    x = 540,527.30

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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.