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Finding the Fourth Proportional to 701,390.40, 1,051,394.40 and 346,459.20

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Solution

The fourth proportional to 701,390.40, 1,051,394.40 and 346,459.20 is: 519,347.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,390.40 : 1,051,394.40 = 346,459.20 : x
  2. Step 2: Convert to fraction form
    701,390.40/1,051,394.40 = 346,459.20/x
  3. Step 3: Cross multiply
    701,390.40x = 1,051,394.40 × 346,459.20
  4. Step 4: Simplify right side
    701,390.40x = 364,265,262,708.48
  5. Step 5: Solve for x
    x = 364,265,262,708.48/701,390.40
  6. Step 6: Final answer
    x = 519,347.37

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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.