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Finding the Fourth Proportional to 472,682.52, 652,303.92 and 257,827.20

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Solution

The fourth proportional to 472,682.52, 652,303.92 and 257,827.20 is: 355,802.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,682.52 : 652,303.92 = 257,827.20 : x
  2. Step 2: Convert to fraction form
    472,682.52/652,303.92 = 257,827.20/x
  3. Step 3: Cross multiply
    472,682.52x = 652,303.92 × 257,827.20
  4. Step 4: Simplify right side
    472,682.52x = 168,181,693,242.62
  5. Step 5: Solve for x
    x = 168,181,693,242.62/472,682.52
  6. Step 6: Final answer
    x = 355,802.65

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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.