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Finding the Fourth Proportional to 293,313.84, 404,779.16 and 165,989.40

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Solution

The fourth proportional to 293,313.84, 404,779.16 and 165,989.40 is: 229,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,313.84 : 404,779.16 = 165,989.40 : x
  2. Step 2: Convert to fraction form
    293,313.84/404,779.16 = 165,989.40/x
  3. Step 3: Cross multiply
    293,313.84x = 404,779.16 × 165,989.40
  4. Step 4: Simplify right side
    293,313.84x = 67,189,049,900.90
  5. Step 5: Solve for x
    x = 67,189,049,900.90/293,313.84
  6. Step 6: Final answer
    x = 229,068.80

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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.