Home / 711,583.55-1,061,786.35-668,153.12

Finding the Fourth Proportional to 711,583.55, 1,061,786.35 and 668,153.12

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Solution

The fourth proportional to 711,583.55, 1,061,786.35 and 668,153.12 is: 996,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,583.55 : 1,061,786.35 = 668,153.12 : x
  2. Step 2: Convert to fraction form
    711,583.55/1,061,786.35 = 668,153.12/x
  3. Step 3: Cross multiply
    711,583.55x = 1,061,786.35 × 668,153.12
  4. Step 4: Simplify right side
    711,583.55x = 709,435,857,216.98
  5. Step 5: Solve for x
    x = 709,435,857,216.98/711,583.55
  6. Step 6: Final answer
    x = 996,981.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.