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Finding the Fourth Proportional to 579,599.60, 869,399.40 and 558,604.40

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Solution

The fourth proportional to 579,599.60, 869,399.40 and 558,604.40 is: 837,906.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,599.60 : 869,399.40 = 558,604.40 : x
  2. Step 2: Convert to fraction form
    579,599.60/869,399.40 = 558,604.40/x
  3. Step 3: Cross multiply
    579,599.60x = 869,399.40 × 558,604.40
  4. Step 4: Simplify right side
    579,599.60x = 485,650,330,197.36
  5. Step 5: Solve for x
    x = 485,650,330,197.36/579,599.60
  6. Step 6: Final answer
    x = 837,906.60

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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.