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Finding the Fourth Proportional to 554,766, 765,577.86 and 300,116.58

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Solution

The fourth proportional to 554,766, 765,577.86 and 300,116.58 is: 414,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,766 : 765,577.86 = 300,116.58 : x
  2. Step 2: Convert to fraction form
    554,766/765,577.86 = 300,116.58/x
  3. Step 3: Cross multiply
    554,766x = 765,577.86 × 300,116.58
  4. Step 4: Simplify right side
    554,766x = 229,762,609,066.92
  5. Step 5: Solve for x
    x = 229,762,609,066.92/554,766
  6. Step 6: Final answer
    x = 414,161.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.