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Finding the Fourth Proportional to 701,410.40, 1,051,424.40 and 346,479.20

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Solution

The fourth proportional to 701,410.40, 1,051,424.40 and 346,479.20 is: 519,377.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,410.40 : 1,051,424.40 = 346,479.20 : x
  2. Step 2: Convert to fraction form
    701,410.40/1,051,424.40 = 346,479.20/x
  3. Step 3: Cross multiply
    701,410.40x = 1,051,424.40 × 346,479.20
  4. Step 4: Simplify right side
    701,410.40x = 364,296,684,972.48
  5. Step 5: Solve for x
    x = 364,296,684,972.48/701,410.40
  6. Step 6: Final answer
    x = 519,377.36

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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.