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Finding the Fourth Proportional to 526,639.92, 726,762.76 and 284,922.56

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Solution

The fourth proportional to 526,639.92, 726,762.76 and 284,922.56 is: 393,192.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,639.92 : 726,762.76 = 284,922.56 : x
  2. Step 2: Convert to fraction form
    526,639.92/726,762.76 = 284,922.56/x
  3. Step 3: Cross multiply
    526,639.92x = 726,762.76 × 284,922.56
  4. Step 4: Simplify right side
    526,639.92x = 207,071,106,091.87
  5. Step 5: Solve for x
    x = 207,071,106,091.87/526,639.92
  6. Step 6: Final answer
    x = 393,192.95

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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.