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Finding the Fourth Proportional to 489,035.90, 732,569.70 and 329,603.60

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Solution

The fourth proportional to 489,035.90, 732,569.70 and 329,603.60 is: 493,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,035.90 : 732,569.70 = 329,603.60 : x
  2. Step 2: Convert to fraction form
    489,035.90/732,569.70 = 329,603.60/x
  3. Step 3: Cross multiply
    489,035.90x = 732,569.70 × 329,603.60
  4. Step 4: Simplify right side
    489,035.90x = 241,457,610,370.92
  5. Step 5: Solve for x
    x = 241,457,610,370.92/489,035.90
  6. Step 6: Final answer
    x = 493,742.10

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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.