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Finding the Fourth Proportional to 457,686.51, 631,644.66 and 253,801.35

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Solution

The fourth proportional to 457,686.51, 631,644.66 and 253,801.35 is: 350,266.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,686.51 : 631,644.66 = 253,801.35 : x
  2. Step 2: Convert to fraction form
    457,686.51/631,644.66 = 253,801.35/x
  3. Step 3: Cross multiply
    457,686.51x = 631,644.66 × 253,801.35
  4. Step 4: Simplify right side
    457,686.51x = 160,312,267,428.29
  5. Step 5: Solve for x
    x = 160,312,267,428.29/457,686.51
  6. Step 6: Final answer
    x = 350,266.53

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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.