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Finding the Fourth Proportional to 467,509.49, 645,263.40 and 295,317.94

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Solution

The fourth proportional to 467,509.49, 645,263.40 and 295,317.94 is: 407,602.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,509.49 : 645,263.40 = 295,317.94 : x
  2. Step 2: Convert to fraction form
    467,509.49/645,263.40 = 295,317.94/x
  3. Step 3: Cross multiply
    467,509.49x = 645,263.40 × 295,317.94
  4. Step 4: Simplify right side
    467,509.49x = 190,557,857,539.68
  5. Step 5: Solve for x
    x = 190,557,857,539.68/467,509.49
  6. Step 6: Final answer
    x = 407,602.11

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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.