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Finding the Fourth Proportional to 472,776.28, 652,548.96 and 291,636.79

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Solution

The fourth proportional to 472,776.28, 652,548.96 and 291,636.79 is: 402,531.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,776.28 : 652,548.96 = 291,636.79 : x
  2. Step 2: Convert to fraction form
    472,776.28/652,548.96 = 291,636.79/x
  3. Step 3: Cross multiply
    472,776.28x = 652,548.96 × 291,636.79
  4. Step 4: Simplify right side
    472,776.28x = 190,307,282,380.87
  5. Step 5: Solve for x
    x = 190,307,282,380.87/472,776.28
  6. Step 6: Final answer
    x = 402,531.37

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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.