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Finding the Fourth Proportional to 607,610.43, 910,852.20 and 208,156.28

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Solution

The fourth proportional to 607,610.43, 910,852.20 and 208,156.28 is: 312,041.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,610.43 : 910,852.20 = 208,156.28 : x
  2. Step 2: Convert to fraction form
    607,610.43/910,852.20 = 208,156.28/x
  3. Step 3: Cross multiply
    607,610.43x = 910,852.20 × 208,156.28
  4. Step 4: Simplify right side
    607,610.43x = 189,599,601,027.56
  5. Step 5: Solve for x
    x = 189,599,601,027.56/607,610.43
  6. Step 6: Final answer
    x = 312,041.39

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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.