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Finding the Fourth Proportional to 575,794.80, 863,692.20 and 505,810.80

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Solution

The fourth proportional to 575,794.80, 863,692.20 and 505,810.80 is: 758,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,794.80 : 863,692.20 = 505,810.80 : x
  2. Step 2: Convert to fraction form
    575,794.80/863,692.20 = 505,810.80/x
  3. Step 3: Cross multiply
    575,794.80x = 863,692.20 × 505,810.80
  4. Step 4: Simplify right side
    575,794.80x = 436,864,842,635.76
  5. Step 5: Solve for x
    x = 436,864,842,635.76/575,794.80
  6. Step 6: Final answer
    x = 758,716.20

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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.