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Finding the Fourth Proportional to 971,714.60, 1,457,571.90 and 853,616.60

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Solution

The fourth proportional to 971,714.60, 1,457,571.90 and 853,616.60 is: 1,280,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,714.60 : 1,457,571.90 = 853,616.60 : x
  2. Step 2: Convert to fraction form
    971,714.60/1,457,571.90 = 853,616.60/x
  3. Step 3: Cross multiply
    971,714.60x = 1,457,571.90 × 853,616.60
  4. Step 4: Simplify right side
    971,714.60x = 1,244,207,569,533.54
  5. Step 5: Solve for x
    x = 1,244,207,569,533.54/971,714.60
  6. Step 6: Final answer
    x = 1,280,424.90

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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.