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Finding the Fourth Proportional to 553,310.40, 829,965.60 and 534,064.80

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Solution

The fourth proportional to 553,310.40, 829,965.60 and 534,064.80 is: 801,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,310.40 : 829,965.60 = 534,064.80 : x
  2. Step 2: Convert to fraction form
    553,310.40/829,965.60 = 534,064.80/x
  3. Step 3: Cross multiply
    553,310.40x = 829,965.60 × 534,064.80
  4. Step 4: Simplify right side
    553,310.40x = 443,255,412,170.88
  5. Step 5: Solve for x
    x = 443,255,412,170.88/553,310.40
  6. Step 6: Final answer
    x = 801,097.20

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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.