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Finding the Fourth Proportional to 401,706.69, 554,350.41 and 231,937.17

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Solution

The fourth proportional to 401,706.69, 554,350.41 and 231,937.17 is: 320,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,706.69 : 554,350.41 = 231,937.17 : x
  2. Step 2: Convert to fraction form
    401,706.69/554,350.41 = 231,937.17/x
  3. Step 3: Cross multiply
    401,706.69x = 554,350.41 × 231,937.17
  4. Step 4: Simplify right side
    401,706.69x = 128,574,465,283.74
  5. Step 5: Solve for x
    x = 128,574,465,283.74/401,706.69
  6. Step 6: Final answer
    x = 320,070.51

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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.