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Finding the Fourth Proportional to 633,328.47, 874,095.30 and 361,407.83

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Solution

The fourth proportional to 633,328.47, 874,095.30 and 361,407.83 is: 498,801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,328.47 : 874,095.30 = 361,407.83 : x
  2. Step 2: Convert to fraction form
    633,328.47/874,095.30 = 361,407.83/x
  3. Step 3: Cross multiply
    633,328.47x = 874,095.30 × 361,407.83
  4. Step 4: Simplify right side
    633,328.47x = 315,904,881,215.72
  5. Step 5: Solve for x
    x = 315,904,881,215.72/633,328.47
  6. Step 6: Final answer
    x = 498,801.01

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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.