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Finding the Fourth Proportional to 571,609.04, 788,831.32 and 313,469.63

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Solution

The fourth proportional to 571,609.04, 788,831.32 and 313,469.63 is: 432,594.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,609.04 : 788,831.32 = 313,469.63 : x
  2. Step 2: Convert to fraction form
    571,609.04/788,831.32 = 313,469.63/x
  3. Step 3: Cross multiply
    571,609.04x = 788,831.32 × 313,469.63
  4. Step 4: Simplify right side
    571,609.04x = 247,274,662,012.81
  5. Step 5: Solve for x
    x = 247,274,662,012.81/571,609.04
  6. Step 6: Final answer
    x = 432,594.04

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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.