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Finding the Fourth Proportional to 702,079.10, 968,873.87 and 430,147.50

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Solution

The fourth proportional to 702,079.10, 968,873.87 and 430,147.50 is: 593,606.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,079.10 : 968,873.87 = 430,147.50 : x
  2. Step 2: Convert to fraction form
    702,079.10/968,873.87 = 430,147.50/x
  3. Step 3: Cross multiply
    702,079.10x = 968,873.87 × 430,147.50
  4. Step 4: Simplify right side
    702,079.10x = 416,758,672,995.83
  5. Step 5: Solve for x
    x = 416,758,672,995.83/702,079.10
  6. Step 6: Final answer
    x = 593,606.44

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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.