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Finding the Fourth Proportional to 866,846.70, 1,300,270.05 and 552,696.30

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Solution

The fourth proportional to 866,846.70, 1,300,270.05 and 552,696.30 is: 829,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,846.70 : 1,300,270.05 = 552,696.30 : x
  2. Step 2: Convert to fraction form
    866,846.70/1,300,270.05 = 552,696.30/x
  3. Step 3: Cross multiply
    866,846.70x = 1,300,270.05 × 552,696.30
  4. Step 4: Simplify right side
    866,846.70x = 718,654,445,635.82
  5. Step 5: Solve for x
    x = 718,654,445,635.82/866,846.70
  6. Step 6: Final answer
    x = 829,044.45

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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.