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Finding the Fourth Proportional to 572,405.40, 858,608.10 and 336,209.40

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Solution

The fourth proportional to 572,405.40, 858,608.10 and 336,209.40 is: 504,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,405.40 : 858,608.10 = 336,209.40 : x
  2. Step 2: Convert to fraction form
    572,405.40/858,608.10 = 336,209.40/x
  3. Step 3: Cross multiply
    572,405.40x = 858,608.10 × 336,209.40
  4. Step 4: Simplify right side
    572,405.40x = 288,672,114,136.14
  5. Step 5: Solve for x
    x = 288,672,114,136.14/572,405.40
  6. Step 6: Final answer
    x = 504,314.10

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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.