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Finding the Fourth Proportional to 293,638.01, 405,248.87 and 164,598.40

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Solution

The fourth proportional to 293,638.01, 405,248.87 and 164,598.40 is: 227,161.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,638.01 : 405,248.87 = 164,598.40 : x
  2. Step 2: Convert to fraction form
    293,638.01/405,248.87 = 164,598.40/x
  3. Step 3: Cross multiply
    293,638.01x = 405,248.87 × 164,598.40
  4. Step 4: Simplify right side
    293,638.01x = 66,703,315,603.81
  5. Step 5: Solve for x
    x = 66,703,315,603.81/293,638.01
  6. Step 6: Final answer
    x = 227,161.72

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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.