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Finding the Fourth Proportional to 882,698.30, 1,322,686.65 and 656,999.90

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Solution

The fourth proportional to 882,698.30, 1,322,686.65 and 656,999.90 is: 984,486.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,698.30 : 1,322,686.65 = 656,999.90 : x
  2. Step 2: Convert to fraction form
    882,698.30/1,322,686.65 = 656,999.90/x
  3. Step 3: Cross multiply
    882,698.30x = 1,322,686.65 × 656,999.90
  4. Step 4: Simplify right side
    882,698.30x = 869,004,996,781.34
  5. Step 5: Solve for x
    x = 869,004,996,781.34/882,698.30
  6. Step 6: Final answer
    x = 984,486.99

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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.