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Finding the Fourth Proportional to 469,647.97, 648,101.40 and 260,088.61

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Solution

The fourth proportional to 469,647.97, 648,101.40 and 260,088.61 is: 358,915.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,647.97 : 648,101.40 = 260,088.61 : x
  2. Step 2: Convert to fraction form
    469,647.97/648,101.40 = 260,088.61/x
  3. Step 3: Cross multiply
    469,647.97x = 648,101.40 × 260,088.61
  4. Step 4: Simplify right side
    469,647.97x = 168,563,792,265.05
  5. Step 5: Solve for x
    x = 168,563,792,265.05/469,647.97
  6. Step 6: Final answer
    x = 358,915.19

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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.