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Finding the Fourth Proportional to 472,782.51, 652,426.95 and 257,922.52

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Solution

The fourth proportional to 472,782.51, 652,426.95 and 257,922.52 is: 355,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,782.51 : 652,426.95 = 257,922.52 : x
  2. Step 2: Convert to fraction form
    472,782.51/652,426.95 = 257,922.52/x
  3. Step 3: Cross multiply
    472,782.51x = 652,426.95 × 257,922.52
  4. Step 4: Simplify right side
    472,782.51x = 168,275,601,428.85
  5. Step 5: Solve for x
    x = 168,275,601,428.85/472,782.51
  6. Step 6: Final answer
    x = 355,926.03

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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.