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Finding the Fourth Proportional to 489,798.90, 734,525.55 and 174,266.10

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Solution

The fourth proportional to 489,798.90, 734,525.55 and 174,266.10 is: 261,337.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,798.90 : 734,525.55 = 174,266.10 : x
  2. Step 2: Convert to fraction form
    489,798.90/734,525.55 = 174,266.10/x
  3. Step 3: Cross multiply
    489,798.90x = 734,525.55 × 174,266.10
  4. Step 4: Simplify right side
    489,798.90x = 128,002,902,948.86
  5. Step 5: Solve for x
    x = 128,002,902,948.86/489,798.90
  6. Step 6: Final answer
    x = 261,337.67

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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.