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Finding the Fourth Proportional to 612,969.17, 845,881.31 and 341,037.59

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Solution

The fourth proportional to 612,969.17, 845,881.31 and 341,037.59 is: 470,622.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,969.17 : 845,881.31 = 341,037.59 : x
  2. Step 2: Convert to fraction form
    612,969.17/845,881.31 = 341,037.59/x
  3. Step 3: Cross multiply
    612,969.17x = 845,881.31 × 341,037.59
  4. Step 4: Simplify right side
    612,969.17x = 288,477,320,011.63
  5. Step 5: Solve for x
    x = 288,477,320,011.63/612,969.17
  6. Step 6: Final answer
    x = 470,622.89

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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.