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Finding the Fourth Proportional to 1,105,803.03, 1,525,959.09 and 615,797.82

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Solution

The fourth proportional to 1,105,803.03, 1,525,959.09 and 615,797.82 is: 849,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,803.03 : 1,525,959.09 = 615,797.82 : x
  2. Step 2: Convert to fraction form
    1,105,803.03/1,525,959.09 = 615,797.82/x
  3. Step 3: Cross multiply
    1,105,803.03x = 1,525,959.09 × 615,797.82
  4. Step 4: Simplify right side
    1,105,803.03x = 939,682,273,401.39
  5. Step 5: Solve for x
    x = 939,682,273,401.39/1,105,803.03
  6. Step 6: Final answer
    x = 849,773.65

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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.