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Finding the Fourth Proportional to 525,659.63, 725,410.55 and 283,942.19

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Solution

The fourth proportional to 525,659.63, 725,410.55 and 283,942.19 is: 391,840.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,659.63 : 725,410.55 = 283,942.19 : x
  2. Step 2: Convert to fraction form
    525,659.63/725,410.55 = 283,942.19/x
  3. Step 3: Cross multiply
    525,659.63x = 725,410.55 × 283,942.19
  4. Step 4: Simplify right side
    525,659.63x = 205,974,662,739.49
  5. Step 5: Solve for x
    x = 205,974,662,739.49/525,659.63
  6. Step 6: Final answer
    x = 391,840.37

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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.