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Finding the Fourth Proportional to 572,407.40, 858,611.10 and 336,211.40

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Solution

The fourth proportional to 572,407.40, 858,611.10 and 336,211.40 is: 504,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,407.40 : 858,611.10 = 336,211.40 : x
  2. Step 2: Convert to fraction form
    572,407.40/858,611.10 = 336,211.40/x
  3. Step 3: Cross multiply
    572,407.40x = 858,611.10 × 336,211.40
  4. Step 4: Simplify right side
    572,407.40x = 288,674,839,986.54
  5. Step 5: Solve for x
    x = 288,674,839,986.54/572,407.40
  6. Step 6: Final answer
    x = 504,317.10

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Half scale
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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.