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Finding the Fourth Proportional to 472,804.40, 709,206.60 and 236,608.40

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Solution

The fourth proportional to 472,804.40, 709,206.60 and 236,608.40 is: 354,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,804.40 : 709,206.60 = 236,608.40 : x
  2. Step 2: Convert to fraction form
    472,804.40/709,206.60 = 236,608.40/x
  3. Step 3: Cross multiply
    472,804.40x = 709,206.60 × 236,608.40
  4. Step 4: Simplify right side
    472,804.40x = 167,804,238,895.44
  5. Step 5: Solve for x
    x = 167,804,238,895.44/472,804.40
  6. Step 6: Final answer
    x = 354,912.60

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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.