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Finding the Fourth Proportional to 626,331, 939,493.96 and 226,878.28

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Solution

The fourth proportional to 626,331, 939,493.96 and 226,878.28 is: 340,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,331 : 939,493.96 = 226,878.28 : x
  2. Step 2: Convert to fraction form
    626,331/939,493.96 = 226,878.28/x
  3. Step 3: Cross multiply
    626,331x = 939,493.96 × 226,878.28
  4. Step 4: Simplify right side
    626,331x = 213,150,773,715.19
  5. Step 5: Solve for x
    x = 213,150,773,715.19/626,331
  6. Step 6: Final answer
    x = 340,316.50

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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.