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Finding the Fourth Proportional to 519,887.60, 779,831.40 and 367,672.40

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Solution

The fourth proportional to 519,887.60, 779,831.40 and 367,672.40 is: 551,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,887.60 : 779,831.40 = 367,672.40 : x
  2. Step 2: Convert to fraction form
    519,887.60/779,831.40 = 367,672.40/x
  3. Step 3: Cross multiply
    519,887.60x = 779,831.40 × 367,672.40
  4. Step 4: Simplify right side
    519,887.60x = 286,722,482,433.36
  5. Step 5: Solve for x
    x = 286,722,482,433.36/519,887.60
  6. Step 6: Final answer
    x = 551,508.60

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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.