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Finding the Fourth Proportional to 556,997.70, 835,496.55 and 521,568.30

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Solution

The fourth proportional to 556,997.70, 835,496.55 and 521,568.30 is: 782,352.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,997.70 : 835,496.55 = 521,568.30 : x
  2. Step 2: Convert to fraction form
    556,997.70/835,496.55 = 521,568.30/x
  3. Step 3: Cross multiply
    556,997.70x = 835,496.55 × 521,568.30
  4. Step 4: Simplify right side
    556,997.70x = 435,768,515,239.37
  5. Step 5: Solve for x
    x = 435,768,515,239.37/556,997.70
  6. Step 6: Final answer
    x = 782,352.45

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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.