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Finding the Fourth Proportional to 626,532.06, 864,605.34 and 340,044.78

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Solution

The fourth proportional to 626,532.06, 864,605.34 and 340,044.78 is: 469,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,532.06 : 864,605.34 = 340,044.78 : x
  2. Step 2: Convert to fraction form
    626,532.06/864,605.34 = 340,044.78/x
  3. Step 3: Cross multiply
    626,532.06x = 864,605.34 × 340,044.78
  4. Step 4: Simplify right side
    626,532.06x = 294,004,532,627.13
  5. Step 5: Solve for x
    x = 294,004,532,627.13/626,532.06
  6. Step 6: Final answer
    x = 469,256.96

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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.