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Finding the Fourth Proportional to 668,332.80, 922,348.14 and 381,846.75

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Solution

The fourth proportional to 668,332.80, 922,348.14 and 381,846.75 is: 526,976.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,332.80 : 922,348.14 = 381,846.75 : x
  2. Step 2: Convert to fraction form
    668,332.80/922,348.14 = 381,846.75/x
  3. Step 3: Cross multiply
    668,332.80x = 922,348.14 × 381,846.75
  4. Step 4: Simplify right side
    668,332.80x = 352,195,639,627.55
  5. Step 5: Solve for x
    x = 352,195,639,627.55/668,332.80
  6. Step 6: Final answer
    x = 526,976.44

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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.