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Finding the Fourth Proportional to 522,497.80, 783,746.70 and 256,777.30

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Solution

The fourth proportional to 522,497.80, 783,746.70 and 256,777.30 is: 385,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,497.80 : 783,746.70 = 256,777.30 : x
  2. Step 2: Convert to fraction form
    522,497.80/783,746.70 = 256,777.30/x
  3. Step 3: Cross multiply
    522,497.80x = 783,746.70 × 256,777.30
  4. Step 4: Simplify right side
    522,497.80x = 201,248,361,509.91
  5. Step 5: Solve for x
    x = 201,248,361,509.91/522,497.80
  6. Step 6: Final answer
    x = 385,165.95

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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.