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Finding the Fourth Proportional to 572,613.60, 858,920.40 and 336,223.20

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Solution

The fourth proportional to 572,613.60, 858,920.40 and 336,223.20 is: 504,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,613.60 : 858,920.40 = 336,223.20 : x
  2. Step 2: Convert to fraction form
    572,613.60/858,920.40 = 336,223.20/x
  3. Step 3: Cross multiply
    572,613.60x = 858,920.40 × 336,223.20
  4. Step 4: Simplify right side
    572,613.60x = 288,788,965,433.28
  5. Step 5: Solve for x
    x = 288,788,965,433.28/572,613.60
  6. Step 6: Final answer
    x = 504,334.80

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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.