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Finding the Fourth Proportional to 336,140.70, 504,211.05 and 86,822.70

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Solution

The fourth proportional to 336,140.70, 504,211.05 and 86,822.70 is: 130,234.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,140.70 : 504,211.05 = 86,822.70 : x
  2. Step 2: Convert to fraction form
    336,140.70/504,211.05 = 86,822.70/x
  3. Step 3: Cross multiply
    336,140.70x = 504,211.05 × 86,822.70
  4. Step 4: Simplify right side
    336,140.70x = 43,776,964,730.84
  5. Step 5: Solve for x
    x = 43,776,964,730.84/336,140.70
  6. Step 6: Final answer
    x = 130,234.05

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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.