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Finding the Fourth Proportional to 522,060.30, 783,090.45 and 256,339.80

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Solution

The fourth proportional to 522,060.30, 783,090.45 and 256,339.80 is: 384,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,060.30 : 783,090.45 = 256,339.80 : x
  2. Step 2: Convert to fraction form
    522,060.30/783,090.45 = 256,339.80/x
  3. Step 3: Cross multiply
    522,060.30x = 783,090.45 × 256,339.80
  4. Step 4: Simplify right side
    522,060.30x = 200,737,249,334.91
  5. Step 5: Solve for x
    x = 200,737,249,334.91/522,060.30
  6. Step 6: Final answer
    x = 384,509.70

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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.