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Finding the Fourth Proportional to 525,326.60, 788,573.10 and 325,872.20

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Solution

The fourth proportional to 525,326.60, 788,573.10 and 325,872.20 is: 489,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,326.60 : 788,573.10 = 325,872.20 : x
  2. Step 2: Convert to fraction form
    525,326.60/788,573.10 = 325,872.20/x
  3. Step 3: Cross multiply
    525,326.60x = 788,573.10 × 325,872.20
  4. Step 4: Simplify right side
    525,326.60x = 256,974,050,957.82
  5. Step 5: Solve for x
    x = 256,974,050,957.82/525,326.60
  6. Step 6: Final answer
    x = 489,170.07

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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.