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Finding the Fourth Proportional to 457,672.04, 686,256.55 and 363,505.29

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Solution

The fourth proportional to 457,672.04, 686,256.55 and 363,505.29 is: 545,058.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,672.04 : 686,256.55 = 363,505.29 : x
  2. Step 2: Convert to fraction form
    457,672.04/686,256.55 = 363,505.29/x
  3. Step 3: Cross multiply
    457,672.04x = 686,256.55 × 363,505.29
  4. Step 4: Simplify right side
    457,672.04x = 249,457,882,739.92
  5. Step 5: Solve for x
    x = 249,457,882,739.92/457,672.04
  6. Step 6: Final answer
    x = 545,058.17

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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.