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Finding the Fourth Proportional to 525,961.60, 788,942.40 and 364,998.40

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Solution

The fourth proportional to 525,961.60, 788,942.40 and 364,998.40 is: 547,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,961.60 : 788,942.40 = 364,998.40 : x
  2. Step 2: Convert to fraction form
    525,961.60/788,942.40 = 364,998.40/x
  3. Step 3: Cross multiply
    525,961.60x = 788,942.40 × 364,998.40
  4. Step 4: Simplify right side
    525,961.60x = 287,962,713,692.16
  5. Step 5: Solve for x
    x = 287,962,713,692.16/525,961.60
  6. Step 6: Final answer
    x = 547,497.60

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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.