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Finding the Fourth Proportional to 447,111.28, 616,866.60 and 277,312.60

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Solution

The fourth proportional to 447,111.28, 616,866.60 and 277,312.60 is: 382,600.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,111.28 : 616,866.60 = 277,312.60 : x
  2. Step 2: Convert to fraction form
    447,111.28/616,866.60 = 277,312.60/x
  3. Step 3: Cross multiply
    447,111.28x = 616,866.60 × 277,312.60
  4. Step 4: Simplify right side
    447,111.28x = 171,064,880,699.16
  5. Step 5: Solve for x
    x = 171,064,880,699.16/447,111.28
  6. Step 6: Final answer
    x = 382,600.23

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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.