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Finding the Fourth Proportional to 570,130.12, 855,186.22 and 196,156.36

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Solution

The fourth proportional to 570,130.12, 855,186.22 and 196,156.36 is: 294,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,130.12 : 855,186.22 = 196,156.36 : x
  2. Step 2: Convert to fraction form
    570,130.12/855,186.22 = 196,156.36/x
  3. Step 3: Cross multiply
    570,130.12x = 855,186.22 × 196,156.36
  4. Step 4: Simplify right side
    570,130.12x = 167,750,216,037.36
  5. Step 5: Solve for x
    x = 167,750,216,037.36/570,130.12
  6. Step 6: Final answer
    x = 294,231.46

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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.