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Finding the Fourth Proportional to 309,083.22, 463,549.92 and 84,444.72

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Solution

The fourth proportional to 309,083.22, 463,549.92 and 84,444.72 is: 126,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,083.22 : 463,549.92 = 84,444.72 : x
  2. Step 2: Convert to fraction form
    309,083.22/463,549.92 = 84,444.72/x
  3. Step 3: Cross multiply
    309,083.22x = 463,549.92 × 84,444.72
  4. Step 4: Simplify right side
    309,083.22x = 39,144,343,200.42
  5. Step 5: Solve for x
    x = 39,144,343,200.42/309,083.22
  6. Step 6: Final answer
    x = 126,646.61

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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.