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Finding the Fourth Proportional to 296,570.60, 444,812.70 and 86,186.60

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Solution

The fourth proportional to 296,570.60, 444,812.70 and 86,186.60 is: 129,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,570.60 : 444,812.70 = 86,186.60 : x
  2. Step 2: Convert to fraction form
    296,570.60/444,812.70 = 86,186.60/x
  3. Step 3: Cross multiply
    296,570.60x = 444,812.70 × 86,186.60
  4. Step 4: Simplify right side
    296,570.60x = 38,336,894,249.82
  5. Step 5: Solve for x
    x = 38,336,894,249.82/296,570.60
  6. Step 6: Final answer
    x = 129,267.35

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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.