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Finding the Fourth Proportional to 525,350.40, 788,271.68 and 258,965.44

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Solution

The fourth proportional to 525,350.40, 788,271.68 and 258,965.44 is: 388,569.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,350.40 : 788,271.68 = 258,965.44 : x
  2. Step 2: Convert to fraction form
    525,350.40/788,271.68 = 258,965.44/x
  3. Step 3: Cross multiply
    525,350.40x = 788,271.68 × 258,965.44
  4. Step 4: Simplify right side
    525,350.40x = 204,135,122,450.74
  5. Step 5: Solve for x
    x = 204,135,122,450.74/525,350.40
  6. Step 6: Final answer
    x = 388,569.46

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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.