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Finding the Fourth Proportional to 578,833.80, 868,250.70 and 521,694.60

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Solution

The fourth proportional to 578,833.80, 868,250.70 and 521,694.60 is: 782,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,833.80 : 868,250.70 = 521,694.60 : x
  2. Step 2: Convert to fraction form
    578,833.80/868,250.70 = 521,694.60/x
  3. Step 3: Cross multiply
    578,833.80x = 868,250.70 × 521,694.60
  4. Step 4: Simplify right side
    578,833.80x = 452,961,701,636.22
  5. Step 5: Solve for x
    x = 452,961,701,636.22/578,833.80
  6. Step 6: Final answer
    x = 782,541.90

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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.