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Finding the Fourth Proportional to 532,194.40, 798,291.60 and 427,218.40

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Solution

The fourth proportional to 532,194.40, 798,291.60 and 427,218.40 is: 640,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,194.40 : 798,291.60 = 427,218.40 : x
  2. Step 2: Convert to fraction form
    532,194.40/798,291.60 = 427,218.40/x
  3. Step 3: Cross multiply
    532,194.40x = 798,291.60 × 427,218.40
  4. Step 4: Simplify right side
    532,194.40x = 341,044,860,085.44
  5. Step 5: Solve for x
    x = 341,044,860,085.44/532,194.40
  6. Step 6: Final answer
    x = 640,827.60

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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.