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Finding the Fourth Proportional to 934,214, 1,289,425.32 and 611,736.80

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Solution

The fourth proportional to 934,214, 1,289,425.32 and 611,736.80 is: 844,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,214 : 1,289,425.32 = 611,736.80 : x
  2. Step 2: Convert to fraction form
    934,214/1,289,425.32 = 611,736.80/x
  3. Step 3: Cross multiply
    934,214x = 1,289,425.32 × 611,736.80
  4. Step 4: Simplify right side
    934,214x = 788,788,919,095.78
  5. Step 5: Solve for x
    x = 788,788,919,095.78/934,214
  6. Step 6: Final answer
    x = 844,334.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.