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Finding the Fourth Proportional to 556,615.46, 768,129.64 and 301,966.62

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Solution

The fourth proportional to 556,615.46, 768,129.64 and 301,966.62 is: 416,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,615.46 : 768,129.64 = 301,966.62 : x
  2. Step 2: Convert to fraction form
    556,615.46/768,129.64 = 301,966.62/x
  3. Step 3: Cross multiply
    556,615.46x = 768,129.64 × 301,966.62
  4. Step 4: Simplify right side
    556,615.46x = 231,949,511,112.62
  5. Step 5: Solve for x
    x = 231,949,511,112.62/556,615.46
  6. Step 6: Final answer
    x = 416,714.10

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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.