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Finding the Fourth Proportional to 283,113.60, 424,670.40 and 261,462.30

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Solution

The fourth proportional to 283,113.60, 424,670.40 and 261,462.30 is: 392,193.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,113.60 : 424,670.40 = 261,462.30 : x
  2. Step 2: Convert to fraction form
    283,113.60/424,670.40 = 261,462.30/x
  3. Step 3: Cross multiply
    283,113.60x = 424,670.40 × 261,462.30
  4. Step 4: Simplify right side
    283,113.60x = 111,035,299,525.92
  5. Step 5: Solve for x
    x = 111,035,299,525.92/283,113.60
  6. Step 6: Final answer
    x = 392,193.45

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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.