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Finding the Fourth Proportional to 997,851.84, 1,375,417.84 and 779,679.04

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Solution

The fourth proportional to 997,851.84, 1,375,417.84 and 779,679.04 is: 1,074,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,851.84 : 1,375,417.84 = 779,679.04 : x
  2. Step 2: Convert to fraction form
    997,851.84/1,375,417.84 = 779,679.04/x
  3. Step 3: Cross multiply
    997,851.84x = 1,375,417.84 × 779,679.04
  4. Step 4: Simplify right side
    997,851.84x = 1,072,384,461,090.07
  5. Step 5: Solve for x
    x = 1,072,384,461,090.07/997,851.84
  6. Step 6: Final answer
    x = 1,074,693.07

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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.