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Finding the Fourth Proportional to 480,147.18, 662,616.47 and 265,301.09

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Solution

The fourth proportional to 480,147.18, 662,616.47 and 265,301.09 is: 366,122.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,147.18 : 662,616.47 = 265,301.09 : x
  2. Step 2: Convert to fraction form
    480,147.18/662,616.47 = 265,301.09/x
  3. Step 3: Cross multiply
    480,147.18x = 662,616.47 × 265,301.09
  4. Step 4: Simplify right side
    480,147.18x = 175,792,871,742.95
  5. Step 5: Solve for x
    x = 175,792,871,742.95/480,147.18
  6. Step 6: Final answer
    x = 366,122.89

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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.