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Finding the Fourth Proportional to 526,084.80, 788,608.80 and 259,886.40

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Solution

The fourth proportional to 526,084.80, 788,608.80 and 259,886.40 is: 389,573.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,084.80 : 788,608.80 = 259,886.40 : x
  2. Step 2: Convert to fraction form
    526,084.80/788,608.80 = 259,886.40/x
  3. Step 3: Cross multiply
    526,084.80x = 788,608.80 × 259,886.40
  4. Step 4: Simplify right side
    526,084.80x = 204,948,702,040.32
  5. Step 5: Solve for x
    x = 204,948,702,040.32/526,084.80
  6. Step 6: Final answer
    x = 389,573.51

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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.