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Finding the Fourth Proportional to 622,113.40, 932,478.90 and 341,831.80

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Solution

The fourth proportional to 622,113.40, 932,478.90 and 341,831.80 is: 512,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,113.40 : 932,478.90 = 341,831.80 : x
  2. Step 2: Convert to fraction form
    622,113.40/932,478.90 = 341,831.80/x
  3. Step 3: Cross multiply
    622,113.40x = 932,478.90 × 341,831.80
  4. Step 4: Simplify right side
    622,113.40x = 318,750,940,849.02
  5. Step 5: Solve for x
    x = 318,750,940,849.02/622,113.40
  6. Step 6: Final answer
    x = 512,367.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.