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Finding the Fourth Proportional to 529,868.80, 794,803.20 and 521,995.60

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Solution

The fourth proportional to 529,868.80, 794,803.20 and 521,995.60 is: 782,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,868.80 : 794,803.20 = 521,995.60 : x
  2. Step 2: Convert to fraction form
    529,868.80/794,803.20 = 521,995.60/x
  3. Step 3: Cross multiply
    529,868.80x = 794,803.20 × 521,995.60
  4. Step 4: Simplify right side
    529,868.80x = 414,883,773,265.92
  5. Step 5: Solve for x
    x = 414,883,773,265.92/529,868.80
  6. Step 6: Final answer
    x = 782,993.40

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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.