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Finding the Fourth Proportional to 489,607.04, 734,484.54 and 173,988.92

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Solution

The fourth proportional to 489,607.04, 734,484.54 and 173,988.92 is: 261,009.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,607.04 : 734,484.54 = 173,988.92 : x
  2. Step 2: Convert to fraction form
    489,607.04/734,484.54 = 173,988.92/x
  3. Step 3: Cross multiply
    489,607.04x = 734,484.54 × 173,988.92
  4. Step 4: Simplify right side
    489,607.04x = 127,792,171,871.30
  5. Step 5: Solve for x
    x = 127,792,171,871.30/489,607.04
  6. Step 6: Final answer
    x = 261,009.67

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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.