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Finding the Fourth Proportional to 608,928.90, 913,393.35 and 253,824.90

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Solution

The fourth proportional to 608,928.90, 913,393.35 and 253,824.90 is: 380,737.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,928.90 : 913,393.35 = 253,824.90 : x
  2. Step 2: Convert to fraction form
    608,928.90/913,393.35 = 253,824.90/x
  3. Step 3: Cross multiply
    608,928.90x = 913,393.35 × 253,824.90
  4. Step 4: Simplify right side
    608,928.90x = 231,841,975,724.42
  5. Step 5: Solve for x
    x = 231,841,975,724.42/608,928.90
  6. Step 6: Final answer
    x = 380,737.35

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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.