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Finding the Fourth Proportional to 466,986.72, 644,444.64 and 265,782.72

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Solution

The fourth proportional to 466,986.72, 644,444.64 and 265,782.72 is: 366,781.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,986.72 : 644,444.64 = 265,782.72 : x
  2. Step 2: Convert to fraction form
    466,986.72/644,444.64 = 265,782.72/x
  3. Step 3: Cross multiply
    466,986.72x = 644,444.64 × 265,782.72
  4. Step 4: Simplify right side
    466,986.72x = 171,282,249,308.62
  5. Step 5: Solve for x
    x = 171,282,249,308.62/466,986.72
  6. Step 6: Final answer
    x = 366,781.84

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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.