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Finding the Fourth Proportional to 561,689.24, 842,533.92 and 187,712.24

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Solution

The fourth proportional to 561,689.24, 842,533.92 and 187,712.24 is: 281,568.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,689.24 : 842,533.92 = 187,712.24 : x
  2. Step 2: Convert to fraction form
    561,689.24/842,533.92 = 187,712.24/x
  3. Step 3: Cross multiply
    561,689.24x = 842,533.92 × 187,712.24
  4. Step 4: Simplify right side
    561,689.24x = 158,153,929,399.18
  5. Step 5: Solve for x
    x = 158,153,929,399.18/561,689.24
  6. Step 6: Final answer
    x = 281,568.38

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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.