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Finding the Fourth Proportional to 575,136.80, 862,705.20 and 365,703.20

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Solution

The fourth proportional to 575,136.80, 862,705.20 and 365,703.20 is: 548,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,136.80 : 862,705.20 = 365,703.20 : x
  2. Step 2: Convert to fraction form
    575,136.80/862,705.20 = 365,703.20/x
  3. Step 3: Cross multiply
    575,136.80x = 862,705.20 × 365,703.20
  4. Step 4: Simplify right side
    575,136.80x = 315,494,052,296.64
  5. Step 5: Solve for x
    x = 315,494,052,296.64/575,136.80
  6. Step 6: Final answer
    x = 548,554.80

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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.