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Finding the Fourth Proportional to 1,283,891.33, 1,771,748.33 and 710,919.20

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Solution

The fourth proportional to 1,283,891.33, 1,771,748.33 and 710,919.20 is: 981,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,891.33 : 1,771,748.33 = 710,919.20 : x
  2. Step 2: Convert to fraction form
    1,283,891.33/1,771,748.33 = 710,919.20/x
  3. Step 3: Cross multiply
    1,283,891.33x = 1,771,748.33 × 710,919.20
  4. Step 4: Simplify right side
    1,283,891.33x = 1,259,569,892,951.60
  5. Step 5: Solve for x
    x = 1,259,569,892,951.60/1,283,891.33
  6. Step 6: Final answer
    x = 981,056.47

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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.