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Finding the Fourth Proportional to 802,957.32, 1,105,299.54 and 694,011.60

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Solution

The fourth proportional to 802,957.32, 1,105,299.54 and 694,011.60 is: 955,331.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,957.32 : 1,105,299.54 = 694,011.60 : x
  2. Step 2: Convert to fraction form
    802,957.32/1,105,299.54 = 694,011.60/x
  3. Step 3: Cross multiply
    802,957.32x = 1,105,299.54 × 694,011.60
  4. Step 4: Simplify right side
    802,957.32x = 767,090,702,234.66
  5. Step 5: Solve for x
    x = 767,090,702,234.66/802,957.32
  6. Step 6: Final answer
    x = 955,331.85

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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.