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Finding the Fourth Proportional to 530,830.54, 792,396.71 and 491,318.32

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Solution

The fourth proportional to 530,830.54, 792,396.71 and 491,318.32 is: 733,414.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,830.54 : 792,396.71 = 491,318.32 : x
  2. Step 2: Convert to fraction form
    530,830.54/792,396.71 = 491,318.32/x
  3. Step 3: Cross multiply
    530,830.54x = 792,396.71 × 491,318.32
  4. Step 4: Simplify right side
    530,830.54x = 389,319,020,330.73
  5. Step 5: Solve for x
    x = 389,319,020,330.73/530,830.54
  6. Step 6: Final answer
    x = 733,414.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.