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Finding the Fourth Proportional to 702,907.60, 1,054,361.40 and 514,901.20

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Solution

The fourth proportional to 702,907.60, 1,054,361.40 and 514,901.20 is: 772,351.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,907.60 : 1,054,361.40 = 514,901.20 : x
  2. Step 2: Convert to fraction form
    702,907.60/1,054,361.40 = 514,901.20/x
  3. Step 3: Cross multiply
    702,907.60x = 1,054,361.40 × 514,901.20
  4. Step 4: Simplify right side
    702,907.60x = 542,891,950,093.68
  5. Step 5: Solve for x
    x = 542,891,950,093.68/702,907.60
  6. Step 6: Final answer
    x = 772,351.80

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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.