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Finding the Fourth Proportional to 481,328.16, 663,831.36 and 360,756.96

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Solution

The fourth proportional to 481,328.16, 663,831.36 and 360,756.96 is: 497,543.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,328.16 : 663,831.36 = 360,756.96 : x
  2. Step 2: Convert to fraction form
    481,328.16/663,831.36 = 360,756.96/x
  3. Step 3: Cross multiply
    481,328.16x = 663,831.36 × 360,756.96
  4. Step 4: Simplify right side
    481,328.16x = 239,481,783,386.27
  5. Step 5: Solve for x
    x = 239,481,783,386.27/481,328.16
  6. Step 6: Final answer
    x = 497,543.68

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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.