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Finding the Fourth Proportional to 626,822.40, 940,636.80 and 346,540.80

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Solution

The fourth proportional to 626,822.40, 940,636.80 and 346,540.80 is: 520,034.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,822.40 : 940,636.80 = 346,540.80 : x
  2. Step 2: Convert to fraction form
    626,822.40/940,636.80 = 346,540.80/x
  3. Step 3: Cross multiply
    626,822.40x = 940,636.80 × 346,540.80
  4. Step 4: Simplify right side
    626,822.40x = 325,969,029,181.44
  5. Step 5: Solve for x
    x = 325,969,029,181.44/626,822.40
  6. Step 6: Final answer
    x = 520,034.11

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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.