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Finding the Fourth Proportional to 458,666.52, 633,276.48 and 286,661.81

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Solution

The fourth proportional to 458,666.52, 633,276.48 and 286,661.81 is: 395,791.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,666.52 : 633,276.48 = 286,661.81 : x
  2. Step 2: Convert to fraction form
    458,666.52/633,276.48 = 286,661.81/x
  3. Step 3: Cross multiply
    458,666.52x = 633,276.48 × 286,661.81
  4. Step 4: Simplify right side
    458,666.52x = 181,536,178,820.85
  5. Step 5: Solve for x
    x = 181,536,178,820.85/458,666.52
  6. Step 6: Final answer
    x = 395,791.21

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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.