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Finding the Fourth Proportional to 546,839.20, 820,258.80 and 346,072.60

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Solution

The fourth proportional to 546,839.20, 820,258.80 and 346,072.60 is: 519,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,839.20 : 820,258.80 = 346,072.60 : x
  2. Step 2: Convert to fraction form
    546,839.20/820,258.80 = 346,072.60/x
  3. Step 3: Cross multiply
    546,839.20x = 820,258.80 × 346,072.60
  4. Step 4: Simplify right side
    546,839.20x = 283,869,095,588.88
  5. Step 5: Solve for x
    x = 283,869,095,588.88/546,839.20
  6. Step 6: Final answer
    x = 519,108.90

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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.