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Finding the Fourth Proportional to 608,130.40, 912,195.60 and 253,026.40

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Solution

The fourth proportional to 608,130.40, 912,195.60 and 253,026.40 is: 379,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,130.40 : 912,195.60 = 253,026.40 : x
  2. Step 2: Convert to fraction form
    608,130.40/912,195.60 = 253,026.40/x
  3. Step 3: Cross multiply
    608,130.40x = 912,195.60 × 253,026.40
  4. Step 4: Simplify right side
    608,130.40x = 230,809,568,763.84
  5. Step 5: Solve for x
    x = 230,809,568,763.84/608,130.40
  6. Step 6: Final answer
    x = 379,539.60

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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.