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Finding the Fourth Proportional to 609,113.40, 913,727.70 and 165,881.40

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Solution

The fourth proportional to 609,113.40, 913,727.70 and 165,881.40 is: 248,837.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,113.40 : 913,727.70 = 165,881.40 : x
  2. Step 2: Convert to fraction form
    609,113.40/913,727.70 = 165,881.40/x
  3. Step 3: Cross multiply
    609,113.40x = 913,727.70 × 165,881.40
  4. Step 4: Simplify right side
    609,113.40x = 151,570,430,094.78
  5. Step 5: Solve for x
    x = 151,570,430,094.78/609,113.40
  6. Step 6: Final answer
    x = 248,837.79

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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.