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Finding the Fourth Proportional to 556,606.66, 768,119.40 and 301,959.64

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Solution

The fourth proportional to 556,606.66, 768,119.40 and 301,959.64 is: 416,705.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,606.66 : 768,119.40 = 301,959.64 : x
  2. Step 2: Convert to fraction form
    556,606.66/768,119.40 = 301,959.64/x
  3. Step 3: Cross multiply
    556,606.66x = 768,119.40 × 301,959.64
  4. Step 4: Simplify right side
    556,606.66x = 231,941,057,501.02
  5. Step 5: Solve for x
    x = 231,941,057,501.02/556,606.66
  6. Step 6: Final answer
    x = 416,705.50

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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.