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Finding the Fourth Proportional to 668,295.55, 922,162.89 and 381,834.19

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Solution

The fourth proportional to 668,295.55, 922,162.89 and 381,834.19 is: 526,882.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,295.55 : 922,162.89 = 381,834.19 : x
  2. Step 2: Convert to fraction form
    668,295.55/922,162.89 = 381,834.19/x
  3. Step 3: Cross multiply
    668,295.55x = 922,162.89 × 381,834.19
  4. Step 4: Simplify right side
    668,295.55x = 352,113,320,151.21
  5. Step 5: Solve for x
    x = 352,113,320,151.21/668,295.55
  6. Step 6: Final answer
    x = 526,882.63

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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.