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Finding the Fourth Proportional to 526,423.41, 725,805.21 and 439,333.42

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Solution

The fourth proportional to 526,423.41, 725,805.21 and 439,333.42 is: 605,730.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,423.41 : 725,805.21 = 439,333.42 : x
  2. Step 2: Convert to fraction form
    526,423.41/725,805.21 = 439,333.42/x
  3. Step 3: Cross multiply
    526,423.41x = 725,805.21 × 439,333.42
  4. Step 4: Simplify right side
    526,423.41x = 318,870,485,163.12
  5. Step 5: Solve for x
    x = 318,870,485,163.12/526,423.41
  6. Step 6: Final answer
    x = 605,730.06

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.