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Finding the Fourth Proportional to 1,224,387.02, 1,827,321.72 and 1,192,500.56

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Solution

The fourth proportional to 1,224,387.02, 1,827,321.72 and 1,192,500.56 is: 1,779,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,387.02 : 1,827,321.72 = 1,192,500.56 : x
  2. Step 2: Convert to fraction form
    1,224,387.02/1,827,321.72 = 1,192,500.56/x
  3. Step 3: Cross multiply
    1,224,387.02x = 1,827,321.72 × 1,192,500.56
  4. Step 4: Simplify right side
    1,224,387.02x = 2,179,082,168,437.66
  5. Step 5: Solve for x
    x = 2,179,082,168,437.66/1,224,387.02
  6. Step 6: Final answer
    x = 1,779,733.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.