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Finding the Fourth Proportional to 561,015.44, 841,530.60 and 187,038.56

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Solution

The fourth proportional to 561,015.44, 841,530.60 and 187,038.56 is: 280,560.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,015.44 : 841,530.60 = 187,038.56 : x
  2. Step 2: Convert to fraction form
    561,015.44/841,530.60 = 187,038.56/x
  3. Step 3: Cross multiply
    561,015.44x = 841,530.60 × 187,038.56
  4. Step 4: Simplify right side
    561,015.44x = 157,398,671,619.94
  5. Step 5: Solve for x
    x = 157,398,671,619.94/561,015.44
  6. Step 6: Final answer
    x = 280,560.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.