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Finding the Fourth Proportional to 346,212.03, 477,852.31 and 203,018.21

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Solution

The fourth proportional to 346,212.03, 477,852.31 and 203,018.21 is: 280,211.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,212.03 : 477,852.31 = 203,018.21 : x
  2. Step 2: Convert to fraction form
    346,212.03/477,852.31 = 203,018.21/x
  3. Step 3: Cross multiply
    346,212.03x = 477,852.31 × 203,018.21
  4. Step 4: Simplify right side
    346,212.03x = 97,012,717,723.76
  5. Step 5: Solve for x
    x = 97,012,717,723.76/346,212.03
  6. Step 6: Final answer
    x = 280,211.86

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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.