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Finding the Fourth Proportional to 262,332.36, 392,004.79 and 196,990.72

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Solution

The fourth proportional to 262,332.36, 392,004.79 and 196,990.72 is: 294,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,332.36 : 392,004.79 = 196,990.72 : x
  2. Step 2: Convert to fraction form
    262,332.36/392,004.79 = 196,990.72/x
  3. Step 3: Cross multiply
    262,332.36x = 392,004.79 × 196,990.72
  4. Step 4: Simplify right side
    262,332.36x = 77,221,304,353.06
  5. Step 5: Solve for x
    x = 77,221,304,353.06/262,332.36
  6. Step 6: Final answer
    x = 294,364.39

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1.5x scale

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.