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Finding the Fourth Proportional to 496,821.60, 745,232.40 and 247,989.60

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Solution

The fourth proportional to 496,821.60, 745,232.40 and 247,989.60 is: 371,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,821.60 : 745,232.40 = 247,989.60 : x
  2. Step 2: Convert to fraction form
    496,821.60/745,232.40 = 247,989.60/x
  3. Step 3: Cross multiply
    496,821.60x = 745,232.40 × 247,989.60
  4. Step 4: Simplify right side
    496,821.60x = 184,809,884,783.04
  5. Step 5: Solve for x
    x = 184,809,884,783.04/496,821.60
  6. Step 6: Final answer
    x = 371,984.40

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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.