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Finding the Fourth Proportional to 532,403.60, 798,605.40 and 511,408.40

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Solution

The fourth proportional to 532,403.60, 798,605.40 and 511,408.40 is: 767,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,403.60 : 798,605.40 = 511,408.40 : x
  2. Step 2: Convert to fraction form
    532,403.60/798,605.40 = 511,408.40/x
  3. Step 3: Cross multiply
    532,403.60x = 798,605.40 × 511,408.40
  4. Step 4: Simplify right side
    532,403.60x = 408,413,509,845.36
  5. Step 5: Solve for x
    x = 408,413,509,845.36/532,403.60
  6. Step 6: Final answer
    x = 767,112.60

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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.