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Finding the Fourth Proportional to 574,831.70, 793,208.28 and 354,033.80

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Solution

The fourth proportional to 574,831.70, 793,208.28 and 354,033.80 is: 488,530.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,831.70 : 793,208.28 = 354,033.80 : x
  2. Step 2: Convert to fraction form
    574,831.70/793,208.28 = 354,033.80/x
  3. Step 3: Cross multiply
    574,831.70x = 793,208.28 × 354,033.80
  4. Step 4: Simplify right side
    574,831.70x = 280,822,537,593.82
  5. Step 5: Solve for x
    x = 280,822,537,593.82/574,831.70
  6. Step 6: Final answer
    x = 488,530.02

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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.