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Finding the Fourth Proportional to 626,475.60, 939,713.40 and 361,054.80

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Solution

The fourth proportional to 626,475.60, 939,713.40 and 361,054.80 is: 541,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,475.60 : 939,713.40 = 361,054.80 : x
  2. Step 2: Convert to fraction form
    626,475.60/939,713.40 = 361,054.80/x
  3. Step 3: Cross multiply
    626,475.60x = 939,713.40 × 361,054.80
  4. Step 4: Simplify right side
    626,475.60x = 339,288,033,694.32
  5. Step 5: Solve for x
    x = 339,288,033,694.32/626,475.60
  6. Step 6: Final answer
    x = 541,582.20

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Double scale
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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.