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Finding the Fourth Proportional to 702,070.47, 968,861.97 and 430,138.89

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Solution

The fourth proportional to 702,070.47, 968,861.97 and 430,138.89 is: 593,594.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,070.47 : 968,861.97 = 430,138.89 : x
  2. Step 2: Convert to fraction form
    702,070.47/968,861.97 = 430,138.89/x
  3. Step 3: Cross multiply
    702,070.47x = 968,861.97 × 430,138.89
  4. Step 4: Simplify right side
    702,070.47x = 416,745,212,339.01
  5. Step 5: Solve for x
    x = 416,745,212,339.01/702,070.47
  6. Step 6: Final answer
    x = 593,594.56

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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.