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Finding the Fourth Proportional to 626,536.80, 939,926.40 and 252,597.60

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Solution

The fourth proportional to 626,536.80, 939,926.40 and 252,597.60 is: 378,945.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,536.80 : 939,926.40 = 252,597.60 : x
  2. Step 2: Convert to fraction form
    626,536.80/939,926.40 = 252,597.60/x
  3. Step 3: Cross multiply
    626,536.80x = 939,926.40 × 252,597.60
  4. Step 4: Simplify right side
    626,536.80x = 237,423,152,816.64
  5. Step 5: Solve for x
    x = 237,423,152,816.64/626,536.80
  6. Step 6: Final answer
    x = 378,945.26

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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.