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Finding the Fourth Proportional to 670,344.64, 925,064.50 and 364,428.60

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Solution

The fourth proportional to 670,344.64, 925,064.50 and 364,428.60 is: 502,905.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,344.64 : 925,064.50 = 364,428.60 : x
  2. Step 2: Convert to fraction form
    670,344.64/925,064.50 = 364,428.60/x
  3. Step 3: Cross multiply
    670,344.64x = 925,064.50 × 364,428.60
  4. Step 4: Simplify right side
    670,344.64x = 337,119,960,644.70
  5. Step 5: Solve for x
    x = 337,119,960,644.70/670,344.64
  6. Step 6: Final answer
    x = 502,905.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.