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Finding the Fourth Proportional to 608,056.60, 912,084.90 and 384,107.80

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Solution

The fourth proportional to 608,056.60, 912,084.90 and 384,107.80 is: 576,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,056.60 : 912,084.90 = 384,107.80 : x
  2. Step 2: Convert to fraction form
    608,056.60/912,084.90 = 384,107.80/x
  3. Step 3: Cross multiply
    608,056.60x = 912,084.90 × 384,107.80
  4. Step 4: Simplify right side
    608,056.60x = 350,338,924,352.22
  5. Step 5: Solve for x
    x = 350,338,924,352.22/608,056.60
  6. Step 6: Final answer
    x = 576,161.70

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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.