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Finding the Fourth Proportional to 579,696.60, 869,544.90 and 558,701.40

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Solution

The fourth proportional to 579,696.60, 869,544.90 and 558,701.40 is: 838,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,696.60 : 869,544.90 = 558,701.40 : x
  2. Step 2: Convert to fraction form
    579,696.60/869,544.90 = 558,701.40/x
  3. Step 3: Cross multiply
    579,696.60x = 869,544.90 × 558,701.40
  4. Step 4: Simplify right side
    579,696.60x = 485,815,952,992.86
  5. Step 5: Solve for x
    x = 485,815,952,992.86/579,696.60
  6. Step 6: Final answer
    x = 838,052.10

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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.