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Finding the Fourth Proportional to 692,235.27, 955,279.12 and 401,873.78

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Solution

The fourth proportional to 692,235.27, 955,279.12 and 401,873.78 is: 554,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,235.27 : 955,279.12 = 401,873.78 : x
  2. Step 2: Convert to fraction form
    692,235.27/955,279.12 = 401,873.78/x
  3. Step 3: Cross multiply
    692,235.27x = 955,279.12 × 401,873.78
  4. Step 4: Simplify right side
    692,235.27x = 383,901,624,123.71
  5. Step 5: Solve for x
    x = 383,901,624,123.71/692,235.27
  6. Step 6: Final answer
    x = 554,582.58

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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.