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Finding the Fourth Proportional to 611,969.94, 917,298.63 and 295,992.18

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Solution

The fourth proportional to 611,969.94, 917,298.63 and 295,992.18 is: 443,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,969.94 : 917,298.63 = 295,992.18 : x
  2. Step 2: Convert to fraction form
    611,969.94/917,298.63 = 295,992.18/x
  3. Step 3: Cross multiply
    611,969.94x = 917,298.63 × 295,992.18
  4. Step 4: Simplify right side
    611,969.94x = 271,513,221,204.71
  5. Step 5: Solve for x
    x = 271,513,221,204.71/611,969.94
  6. Step 6: Final answer
    x = 443,670.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.