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Finding the Fourth Proportional to 702,862.38, 1,054,284.10 and 170,388

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Solution

The fourth proportional to 702,862.38, 1,054,284.10 and 170,388 is: 255,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,862.38 : 1,054,284.10 = 170,388 : x
  2. Step 2: Convert to fraction form
    702,862.38/1,054,284.10 = 170,388/x
  3. Step 3: Cross multiply
    702,862.38x = 1,054,284.10 × 170,388
  4. Step 4: Simplify right side
    702,862.38x = 179,637,359,230.80
  5. Step 5: Solve for x
    x = 179,637,359,230.80/702,862.38
  6. Step 6: Final answer
    x = 255,579.70

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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.