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Finding the Fourth Proportional to 525,726.60, 788,589.90 and 441,745.80

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Solution

The fourth proportional to 525,726.60, 788,589.90 and 441,745.80 is: 662,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,726.60 : 788,589.90 = 441,745.80 : x
  2. Step 2: Convert to fraction form
    525,726.60/788,589.90 = 441,745.80/x
  3. Step 3: Cross multiply
    525,726.60x = 788,589.90 × 441,745.80
  4. Step 4: Simplify right side
    525,726.60x = 348,356,276,247.42
  5. Step 5: Solve for x
    x = 348,356,276,247.42/525,726.60
  6. Step 6: Final answer
    x = 662,618.70

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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.