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Finding the Fourth Proportional to 522,083.30, 783,124.95 and 256,362.80

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Solution

The fourth proportional to 522,083.30, 783,124.95 and 256,362.80 is: 384,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,083.30 : 783,124.95 = 256,362.80 : x
  2. Step 2: Convert to fraction form
    522,083.30/783,124.95 = 256,362.80/x
  3. Step 3: Cross multiply
    522,083.30x = 783,124.95 × 256,362.80
  4. Step 4: Simplify right side
    522,083.30x = 200,764,104,931.86
  5. Step 5: Solve for x
    x = 200,764,104,931.86/522,083.30
  6. Step 6: Final answer
    x = 384,544.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.