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Finding the Fourth Proportional to 451,111.68, 622,600.40 and 260,087.68

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Solution

The fourth proportional to 451,111.68, 622,600.40 and 260,087.68 is: 358,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,111.68 : 622,600.40 = 260,087.68 : x
  2. Step 2: Convert to fraction form
    451,111.68/622,600.40 = 260,087.68/x
  3. Step 3: Cross multiply
    451,111.68x = 622,600.40 × 260,087.68
  4. Step 4: Simplify right side
    451,111.68x = 161,930,693,603.07
  5. Step 5: Solve for x
    x = 161,930,693,603.07/451,111.68
  6. Step 6: Final answer
    x = 358,959.21

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1.5x scale

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.