Home / 765,148.98-1,147,714.11-344,127.54

Finding the Fourth Proportional to 765,148.98, 1,147,714.11 and 344,127.54

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Solution

The fourth proportional to 765,148.98, 1,147,714.11 and 344,127.54 is: 516,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,148.98 : 1,147,714.11 = 344,127.54 : x
  2. Step 2: Convert to fraction form
    765,148.98/1,147,714.11 = 344,127.54/x
  3. Step 3: Cross multiply
    765,148.98x = 1,147,714.11 × 344,127.54
  4. Step 4: Simplify right side
    765,148.98x = 394,960,033,297.59
  5. Step 5: Solve for x
    x = 394,960,033,297.59/765,148.98
  6. Step 6: Final answer
    x = 516,187.10

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1.5x scale

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.