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Finding the Fourth Proportional to 886,670.80, 1,330,200.60 and 437,606.80

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Solution

The fourth proportional to 886,670.80, 1,330,200.60 and 437,606.80 is: 656,506.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,670.80 : 1,330,200.60 = 437,606.80 : x
  2. Step 2: Convert to fraction form
    886,670.80/1,330,200.60 = 437,606.80/x
  3. Step 3: Cross multiply
    886,670.80x = 1,330,200.60 × 437,606.80
  4. Step 4: Simplify right side
    886,670.80x = 582,104,827,924.08
  5. Step 5: Solve for x
    x = 582,104,827,924.08/886,670.80
  6. Step 6: Final answer
    x = 656,506.14

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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.