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Finding the Fourth Proportional to 489,235.72, 675,152.53 and 366,510.67

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Solution

The fourth proportional to 489,235.72, 675,152.53 and 366,510.67 is: 505,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,235.72 : 675,152.53 = 366,510.67 : x
  2. Step 2: Convert to fraction form
    489,235.72/675,152.53 = 366,510.67/x
  3. Step 3: Cross multiply
    489,235.72x = 675,152.53 × 366,510.67
  4. Step 4: Simplify right side
    489,235.72x = 247,450,607,831.48
  5. Step 5: Solve for x
    x = 247,450,607,831.48/489,235.72
  6. Step 6: Final answer
    x = 505,790.15

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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.