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Finding the Fourth Proportional to 1,775,782.02, 2,449,979.53 and 1,011,294.30

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Solution

The fourth proportional to 1,775,782.02, 2,449,979.53 and 1,011,294.30 is: 1,395,244.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,782.02 : 2,449,979.53 = 1,011,294.30 : x
  2. Step 2: Convert to fraction form
    1,775,782.02/2,449,979.53 = 1,011,294.30/x
  3. Step 3: Cross multiply
    1,775,782.02x = 2,449,979.53 × 1,011,294.30
  4. Step 4: Simplify right side
    1,775,782.02x = 2,477,650,333,805.68
  5. Step 5: Solve for x
    x = 2,477,650,333,805.68/1,775,782.02
  6. Step 6: Final answer
    x = 1,395,244.63

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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.