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Finding the Fourth Proportional to 526,685.54, 726,820.86 and 284,962.80

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Solution

The fourth proportional to 526,685.54, 726,820.86 and 284,962.80 is: 393,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,685.54 : 726,820.86 = 284,962.80 : x
  2. Step 2: Convert to fraction form
    526,685.54/726,820.86 = 284,962.80/x
  3. Step 3: Cross multiply
    526,685.54x = 726,820.86 × 284,962.80
  4. Step 4: Simplify right side
    526,685.54x = 207,116,911,158.20
  5. Step 5: Solve for x
    x = 207,116,911,158.20/526,685.54
  6. Step 6: Final answer
    x = 393,245.87

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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.