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Finding the Fourth Proportional to 579,240.80, 868,861.20 and 537,250.40

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Solution

The fourth proportional to 579,240.80, 868,861.20 and 537,250.40 is: 805,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,240.80 : 868,861.20 = 537,250.40 : x
  2. Step 2: Convert to fraction form
    579,240.80/868,861.20 = 537,250.40/x
  3. Step 3: Cross multiply
    579,240.80x = 868,861.20 × 537,250.40
  4. Step 4: Simplify right side
    579,240.80x = 466,796,027,244.48
  5. Step 5: Solve for x
    x = 466,796,027,244.48/579,240.80
  6. Step 6: Final answer
    x = 805,875.60

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Double scale
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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.