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Finding the Fourth Proportional to 346,039.90, 518,075.70 and 346,039.90

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Solution

The fourth proportional to 346,039.90, 518,075.70 and 346,039.90 is: 518,075.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,039.90 : 518,075.70 = 346,039.90 : x
  2. Step 2: Convert to fraction form
    346,039.90/518,075.70 = 346,039.90/x
  3. Step 3: Cross multiply
    346,039.90x = 518,075.70 × 346,039.90
  4. Step 4: Simplify right side
    346,039.90x = 179,274,863,420.43
  5. Step 5: Solve for x
    x = 179,274,863,420.43/346,039.90
  6. Step 6: Final answer
    x = 518,075.70

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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.